1. (Zhejiang Shaoxing 20 10, 1 1) In the following figures, the description of the phenomenon or conclusion is incorrect (C).

2.(20 10, Wenzhou, Zhejiang, 19) In the "Little Scientist" competition, there is an event called "bouncing and hitting objects" (as shown in the picture), which requires the contestants to shoot the ball on the plane mirror, bounce off the plane mirror and hit the objects in the target area. In which direction does the player hit the ball in the launching area, and it is most likely to hit the target?

A. toward OA B. Toward OB

C. In the OC direction D. In the OD direction

3.(20 10 Jinhua, Zhejiang, 17) The optical principle of the right hand shadow is ()

A. Reflection of light B. Refraction of light

C. plane mirror imaging D. light travels in a straight line in the same substance

4.(20 10, Jiaxing, Zhejiang, question 16) Xiao Ming saw a demonstration experiment of the teacher when he was studying the Propagation of Light. The process is as follows: ① shooting at the water with a laser pointer, he observed that the light is a straight line (as shown in the picture); ② At point A, slowly inject the hypotonic solution into the water with a funnel, and observe whether the light is bent; (3) After stirring, it is observed that the light becomes straight again. Xiao Ming's conclusion based on the above phenomenon is correct.

A. The propagation of light needs a medium. B. Light only travels in a straight line in water.

C. Light cannot travel in a straight line in a hypo solution. D. Light can only travel in a straight line in the same homogeneous medium.

5. (Chongqing, 20 10/0,3) In the optical instrument shown in the figure, (b) mainly uses reflection imaging when it is used.

6. (Shandong Jining 20 10 Volume I 1 Title) Among the four phenomena shown in Figure 1, the linear propagation of light is

A. Tower in the water B. Broken branches on the water C. Flowers in the mirror D. Hand shadow

7. (Shandong Linyi 20 10, question 12) Which of the following phenomena is not formed by the linear propagation of light?

A. shadow B. mirage on expressway C. pinhole imaging D. solar eclipse

8(20 10 Nanjing, Jiangsu, 2 questions) In the phenomenon shown in the figure, A is formed by the reflection of light.

9.(20 10 Jiangsu Suqian 3 questions) As shown in the four scenes, B belongs to the phenomenon of light reflection.

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10.(20 10 Taizhou, Jiangsu, question 7) The distance between the tested person and the eye chart is 5m. As shown in Figure 3, the distance between the eye chart and the plane mirror is 3m. In order to meet the measurement requirements, the distance between the person and the plane mirror should be

A. 1m B. 1.5m C.2m D.3m

1 1. (Guangdong Zhanjiang 20 10/0,2) In the four scenes shown in the figure 1, the linear propagation of light is (a).

12(20 10, Heze, Shandong, 1 1) Figure 7 is our common life phenomenon, which is formed by the linear propagation of light.

13.(20 10 Suzhou, Jiangsu, 6 questions) Among the following light phenomena, C is formed due to the reflection of light.

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14.(20 10 Zhenjiang, Jiangsu 4 questions) Among the four light phenomena described below, the one that belongs to the straight-line propagation of light is

A. small hole imaging B. chopsticks seem to be bent when inserted into water

C. Read the newspaper with a magnifying glass D. Reflection in the water

15.(20 10 Jingmen, Hubei 3) Regarding the phenomenon of light, the following statement is correct.

The solar eclipse in China Yangtze River Basin in July 2009 can be explained by the theory of straight-line propagation of light.

B. A rainbow will appear in the sky after the rain clears, which is formed by the reflection of light.

C. If you don't pay attention to eye hygiene, it is easy to make your eyes "nearsighted". At this time, it is necessary to wear glasses made of convex lens to correct it.

D. the position of the fish you see on the shore in the water is actually the actual position of the fish in the water.

16.(20 10 Changzhou, Jiangsu, 5 questions) On May Day, at the Chinese rose exhibition in Changzhou Bauhinia Park, Xiaoming blocked the red filter (that is, red glass) in front of the camera lens to shoot a rose with green leaves and yellow flowers. What is the color of the flowers in the photo?

A. green leaf yellow flower B. black leaf red flower C. black leaf yellow flower D. red leaf red flower

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17.(20 10 Changzhou, Jiangsu,15) In the summer of 2009, there was a spectacle of solar eclipse in China. Xiaohua observed the ""-shaped sun with the help of pinhole imaging experimental device. There are round holes in the paper box, so the shape of the image she sees on the translucent screen is (C).

18.(20 10 Huanggang, Hubei, 17) Many idioms we have learned contain physical knowledge. Which of the following idioms is a "shadow" formed by light reflection?

A. a glass of bow and snake shadow B. inseparable C. alone D. immediate effect

19.(20 10, Wuhan, Hubei, 2 questions) The following picture is an experimental device for exploring the imaging characteristics of flat mirrors. A is a glass plate, and B and C are two identical candles. The following statement is wrong ()

A. In order to ensure the experimental effect, a thinner glass plate should be selected.

B During the experiment, the glass plate A should be placed vertically with the horizontal desktop.

C. light the candle c before moving it along the horizontal desktop.

D. the experiment is best carried out in a dark environment.

20. (Shandong Laiwu 20 10/0,2) The following are common light phenomena in our daily life, and their explanations are correct.

A. The closer a person is to a flat mirror, the bigger the image.

B. myopia glasses are convex lenses.

C. Seeing the fish in the water on the shore is the true image of the fish.

D. The red light shines on the actress wearing a white coat and a blue skirt. The audience sees that her coat is red and her skirt is black.

2 1.(20 10 Bijie, Guizhou, 2 questions) Among the following light phenomena, () is formed due to the linear propagation of light.

A. "Moon Shadow" on the lake B. "Broken Pen" in the cup

C. pinhole "imaging" D. "landscape" in the mirror

22.(20 10, Harbin, Heilongjiang, Question 18) A classmate was walking by the lake and saw that the bridge and its reflection in the water formed a beautiful picture, so he took it with his camera. For the reflection of the bridge in the water and its image on the negative, the following statement is correct.

A. The reflection of the bridge in the water is a reduced real image formed by light propagating along a straight line.

B. The reflection of the bridge in the water is an isometric virtual image formed by light reflection.

The image on the negative is a reduced virtual image formed by light refraction.

D. the image on the negative is an equal real image formed by light reflection.

23.(20 10 Tianjin, 2 questions) As shown in the figure, a beam of light is obliquely incident on a plane mirror, in which the reflection angle is ().

A.∠ 1 b∠2 c∠3d∠4

24. (Tianjin, 20 10, question 3) When checking eyesight, the eye chart is placed on the back of the head and the top of the head of the subject, and the subject recognizes the image in the mirror on the opposite wall (as shown in the figure). The image of the eye chart in the mirror is far away from the subject ()

A.2. 1m B.2.5 m C.4.6m D.5m

25.(20 10 Yichang, Hubei, 2 questions) The following statement is true about the imaging of objects through a flat mirror.

A. the image formed by an object through a plane mirror is a real image.

B. The farther the object is from the plane mirror, the smaller the image.

The size of an object and its image in a plane mirror must be equal.

The distance from the object to the plane mirror is greater than the distance from the image to the plane mirror.

26.(20 10 Yichang, Hubei 3 questions) Xiaoming went to the lake to play. He saw the following phenomenon, which can be explained by the straight-line propagation of light.

A. The sun in the lake B. The reflection of the trees in the lake

C. the fish are swimming in the lake. Your own shadow is on the ground in the sun.

27.(20 10, Putian, Fujian, 1) The phenomena in the following four pictures are caused by the linear propagation of light (b).

28.(20 10 huadu district, Guangzhou, 6 questions) the following description belongs to the phenomenon of light reflection, which is B.

A. Looking at the fish from the side of the fish tank, it is found that the fish will become bigger. B. Zhu Bajie looks in the mirror and looks the same.

C.the bottom of the swimming pool filled with water looks very shallow. D. sitting in a well and looking at the sky, what you see is very small.

29.(20 10, Yuxi, Yunnan, 1) The statement about light phenomenon is correct.

A. the image formed on the retina is upright and reduced. The three primary colors of pigment are red, green and blue.

C. light must be deflected at the interface between the two media. Solar cookers can concentrate light.

30. (Lianyungang, Jiangsu, 20 10, 2 questions) An annular eclipse occurred on 20 10 and 15, and an annular eclipse was observed in Lianyungang city. The following statement about the cause of the solar eclipse is correct.

A. refraction of light

B. Light reflection phenomenon

C. dispersion phenomenon of light

D. linear propagation of light

3 1.(20 10 Shiyan, Hubei, question 9) There is a point light source S in front of the plane mirror MN. If the mirror MN does not move, the light source S will move in a straight line at a speed of 2m/s along a direction at an angle of 60 with the mirror, as shown in Figure 4, and then the image S' of the light source S in the mirror will be

Answer: Move to the right in the direction of SO straight line at a speed of 4m/s.

B. Move upward at a speed of 2m/s in the direction perpendicular to s0.

C. Translate downward at a speed of 2m/s in the direction perpendicular to SO.

D. the image seen on s approaches s at a speed of 2 m/s along the direction of s.

32.(20 10 Quanzhou, Fujian 7 questions) At night in Chu Qing after the rain, there was water on the ground. There was water on the ground when we were walking in the moonlight. this is because

A. the dark place on the ground is the light emitted by the mirror. B. the bright place on the ground is the mirror emission of light.

C. diffuse reflection of light occurs in bright places on the ground. D. specular reflection occurs in both bright and dark places on the ground.

33. (Xiangtan, Hunan 20 10,11) In July 2009, a total solar eclipse once in 500 years appeared in China. The cause of the solar eclipse and the area where you can see the total solar eclipse in the picture below are () respectively.

A. reflection of light; Zone A

B. refraction of light; B area

C. straight-line propagation of light; Zone A

D. straight-line propagation of light; B area

34. (Xiangtan, Hunan, 20 10, question 12) As shown in the figure, the small mirror hanging on the white warm wall is illuminated with a flashlight in the darkroom, and then the illuminated part is seen ().

A. The walls and mirrors are all black.

The walls and mirrors are all white.

C. The wall is black and the mirror is white.

D. The wall is white and the mirror is black.

35. (Liuzhou, Guangxi, 20 10/0,4) The formation of the "shadow" in the idiom "immediate effect" is due to

A. refraction of light B. straight-line propagation of light

C. Reflection of light D. Scattering of light

36.(20 10 Taian, Shandong, 2 questions) Of the four scenes shown in the figure, the application of light reflection is (b).

37.(20 10 Shanghai, 5 questions) As shown in Figure 2, the position of the candle in the plane mirror M should be in the figure ().

A，A，B，B，C，D，D。

38. (Shanghai, 20 10/0,3) Among various colors, it is ().

A, red, green, blue b, red, yellow, blue c, red, yellow, green d, yellow, green and blue.

Second, fill in the blanks,

1.(20 10 Quzhou, Zhejiang, 26 questions) There is a "celadon giant bowl" with a diameter of 8 meters in the Zhejiang Pavilion of the Shanghai World Expo, which contains 6 tons of "water". Under the light, the blue waves rippled in the celadon bowl, accompanied by the melodious sound of silk and bamboo, and tourists seemed to be in the picturesque south of the Yangtze River.

(1) Tourists see the rippling "water" surface because it faces the light.

(2) Around the "celadon giant bowl" is a huge annular lifting platform. Visitors stand in a circle on the lifting platform. After the lifting platform rises, they can see the inside of the celadon giant bowl at the same time. In a certain lifting, the lifting platform raised 80 tourists by 3 meters at a uniform speed. If the mass of each tourist is calculated as 60 kg, then the work that the lifting platform does for tourists in this lifting process is ▲ Coke. (1) The answer reflects (2) 1.44× 105.

2. (Taizhou, Zhejiang 23 questions 2065438+00) In 2008, American scientists invented a special invisible substance. Light travels in the air, and when it hits the material surface, it will "flow away" along the clothes, so that light can't happen on its surface and others can't see it. Linear reflection (or diffuse reflection)

3. (Wuhu, Anhui Province, 20 10, question 6) Put the lighted candles in front of the self-made pinhole imager, adjust their positions, and get a clear candle reflection on the screen as shown in Figure 2. Please determine the position of pinhole O on the imager (keep drawing trajectory). If the candle is placed a little closer to the imager, the image of the candle will be (select "bigger", "smaller" or "unchanged"). (as shown below), bigger;

(4.(20 10/0 Yiwu, Zhejiang, 2 1) To celebrate the 60th anniversary of the founding of People's Republic of China (PRC), a grand military parade was held in Tiananmen Square.

(1) Fighter formations, all driven by female pilots, made their debut in the National Day military parade, which attracted much attention. As shown in the figure, when the formation flies over Tiananmen Square in a stable formation, if the pilot is taken as the reference object, the fighters with the team are (choose "moving" or "stationary");

(2) As shown in the picture, the female soldiers marched in front of Tiananmen Square with neat steps. The optical principle of judging whether the team is aligned is. (1) Still (2) Light travels in a straight line in the same homogeneous medium (if light travels in a straight line, it will be characterized).

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5.(20 10 Suqian, Jiangsu, 14) The inverted "shadow" of the bridge in the river and the "shadow" of the vertical pole are _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

6.(20 10 Yangzhou, Jiangsu, 16) Xiaoming explored the characteristics of flat mirror imaging by using flat glass, two identical candles and other equipment.

(1) The purpose of selecting the glass plate is _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

(2) The purpose of choosing two identical candles is _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _. If you keep the lighted candle away from the glass plate, it is like moving _ _ _ _ _ _ _ _ _ _ _ _.

Compared with the size relationship between the image and the object, the position of the virtual image is determined to be far from the glass plate.

7.(20 10, Zhaoqing, Guangdong, 1 1) The mirror used by teachers and students to tidy up the appearance of the instrument belongs to the▲ mirror, the rearview mirror outside the window belongs to the▲ mirror in the spherical mirror, and the lens of myopia glasses belongs to the▲mirror.

Answer: plane, convex and concave.

8.(20 10, Guilin, Guangxi, 15) As shown in Figure 9, it is the symbol of our city-Elephant Trunk Hill, because of the spread of light, we can see it far away; Its reflection in the Lijiang River is due to the _ _ _ _ of light.

Answer: straight line, reflection

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9.(20 10 Nantong, Jiangsu, question 27) An interest group poked a small round hole in the center of the bottom of an empty can, cut off the top, covered it with plastic film, and made a simple pinhole camera. As shown in the figure, place it horizontally and fix a small light bulb with the same height as the left hole. When the bulb glows, you can see the image of the filament on the plastic film ▲ (you can choose "upside down" or "upright"). If the can moves horizontally to the left, the size of the image ▲ (zoom in, zoom out or unchanged). If only the small round hole is changed into a triangular hole, the shape of the image ▲ (optional "change" or "unchanged"

10.(20 10? Hebei Province, Question 24) Panshan Highway is a deformation (fill in the name of simple machinery). As shown in figure 10, when the car is driving on the AB section, due to (from the optical point of view,

Answer), the driver can't see the situation of BC section; In order to see the BC segment

Situation, people use the law to make a sharp turn on the expressway.

A convex mirror is installed at B to reduce accidents.

Reflection of inclined plane light on light propagating along a straight line

1 1.(20 10, Zhenjiang, Jiangsu, 16) In the experiment of "exploring flat mirror imaging", Xiao Zhang put a glass plate vertically on a horizontal platform, then picked up two identical candles A and B, lit candle A in front of the glass plate, and moved candle B carefully. If candle B is removed and a light screen is placed in its place, the candle flame image of candle A cannot be received on the light screen (please fill in "Yes" or "Yes" and the size of the candle image will remain unchanged as the candle moves away from the glass plate (choose "Larger", "Smaller" or "No Change").

12.(20 10 Xiangfan, Hubei, 24 questions) Zaoyang City is known as the "hometown of peaches in China". Peach blossoms in the mountains and plains are charming and intoxicating in the warm sunshine in March. We see red peach blossoms because the sunlight is reflected on them. Give off a dim light

13.(20 10 Beijing, 30 questions)

Answer:

14.(20 10 Harbin city, Heilongjiang province, question 46) sunlight penetrates through dense leaf stomata and forms bright spots on the ground; When the sun is facing the convex lens, sometimes a bright spot can be seen. The former indicates the formation of light spot _ _ _ _, and the latter indicates the formation of light spot _ _ _ _.

Light travels in a straight line (pinhole imaging). A convex lens can condense light.

15.(20 10, Luzhou, Sichuan, Volume 1, multiple choice question 2) As shown in the figure, Iceland volcano erupted in 20 10. High-temperature magma makes the ice sheet (optional "melting" or "solidification"), which causes the river water level to skyrocket. A large number of volcanic dust rises and blocks the earth, just like holding up an umbrella, so that the sunlight hitting the ground occurs on the volcanic dust (optional "reflection", "refraction" or "scattering"), which leads to the reduction of heat radiated to the earth's surface and may have a slight cooling effect on the regional climate.

Melting reflection

16.(20 10 Yichang, Hubei, 2 1) Write a word on a piece of white paper with red pigment and take it to a dark room. Only when the green light is on, the white paper will be _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _. Green; black

17.(20 10, Chuxiong Prefecture, Yunnan Province, 13) The height of Xiaojun's classmates1.6m. When he stood in front of a flat mirror of 1m, the image in the mirror was 2 m away from him. If he leaves the flat mirror for 4s at a speed of 0.5m/s, the distance between his image and the flat mirror is 3 m, and the size of the image will remain unchanged (fill in "bigger", "smaller" or "unchanged").

18.(20 10, Putian, Fujian, 16) Xiao Li is 1.60m tall and stands 0.50m in front of the mirror, so his image in the mirror is _ _ _ _ m away from the mirror and _ _ _ _ m high. As he moves away from the mirror, the size of the image will be _ _ _ _ _ (fill in "bigger", "smaller" or "unchanged"). 0.50 (or 0.5) 1. 60 (or l .6) remains unchanged.

19.(20 10 Hechi, Guangxi, 1) Light propagates along a uniform medium; Students can see the words on the blackboard in every position in the classroom, which is the reflection of light.

Answer: straight line.

20. (Jilin Province 20 10/0,2) As shown in Figure 1, (b) is a light reflection phenomenon.

2 1.(20 10 Yuxi, Yunnan, 10) The causes of annular solar eclipse are as follows. Taking the sun as a reference, the earth is right. Light travels in a straight line.

22.(20 10, Lianyungang, Jiangsu, 15) Xiaoming is 1.65 meters tall. He stood 2 m in front of a vertical plane mirror, and his image height in the mirror was 1.65 m, which was 4 m away from him. If he is close to the flat mirror, the size of the image will be. (bigger, smaller, unchanged)

23.(20 10, Binzhou, Shandong, 14) If an object can reflect all colors of light, then it appears colored; If an object can absorb all colors of light, it will be colored.

Answer, white and black.

24.(20 10, Changsha, Hunan, question 28) On July 22nd, 2009, the largest total solar eclipse occurred in the Yangtze River valley of China since this century. Figure A is a spectacle of solar eclipse observed by students in a school with a basin of ink. The reason for the solar eclipse is that light travels along _ _ _ _ _ _. When we are in _ _ _ _ in Figure B,

Answer: straight line, a

25. (Maoming, Guangdong, 20 10, 13) Maoming is a beautiful coastal city, full of natural or artificial lakes. The reflection of trees on the lakeshore in the lake is formed by _ _ _ _ _ _ _ _ _.

Answer: reflection, reflection and refraction

Third, drawing questions,

1. (Hangzhou, Zhejiang 20 10/0,36) The picture on the right is a schematic view of a car from above. Point O is the position of the driver's eyes, and the driver can see point C at the rear of the car in the right rearview mirror AB (as a flat mirror). According to the imaging law of plane mirror, draw the optical path diagram of the driver's eyes looking at point C.

2.

answer

2. (Guangdong Guangzhou 20 10, 17(2)) Draw the incident light reflected by the plane mirror in the figure 19.

Answer:

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3.(20 10, Yantai, Shandong, 2 1) Bicycle is a convenient means of transportation, which contains a lot of physical knowledge. For example, the taillights of bicycles contain optical knowledge. It doesn't shine by itself, but at night, when the car light shines on the taillight, it will reflect to attract the driver's attention. The structure of the taillight is shown in figure 13.

Answer: as shown in figure 1. (3 points) The incident light is parallel to people, and the reflected light is parallel to people. The direction of reflected light is opposite to that of incident light. (Answer one and you will get an integral) (1 minute).

4. (Shanghai, 20 questions, 20 10) According to the imaging characteristics of the plane mirror, draw the image A of the object AB in the plane mirror MN in the figure 1 1. b？ .

Answer:

answer

5.(20 10, Yancheng, Jiangsu, 2 1) As shown in Figure B, where S is the light source and so is a beam of light emitted by the light source, draw the reflected light of SO.

6.(20 10 Guangdong province, 15 topic (3)) as shown in figure 14, in the practice room, Xiaohong uses a flat mirror to help correct her dancing posture. Draw the light path diagram of point B on her foot after the light passes through the plane mirror and enters the point A of the human eye.

Answer:

7.(20 10, Henan Province, 17) As shown in figure 10, a flat mirror is placed at point O, so that the sunlight at an angle of 60 degrees from the horizontal direction is reflected by point O and enters the window P horizontally. Please draw the position of the flat mirror in the figure and mark the degree of reflection angle.

8(20 10 Xiangfan, Hubei, 33 questions) The light makes an angle of 300 with the plane mirror, as shown in Figure 5. Please draw its reflected light according to the reflection law of light and indicate the reflection angle.

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9.(20 10 Chongqing Qijiang, 16) In Figure 9, the incident light is drawn according to the reflected light, and the incident angle is _ _ _ _ _ _ _ _.

Slightly inclined by 60

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10.(20 10 Jilin province, 22 questions)

(2) Draw the general directions of reflected light and refracted light in figure 1 1.

Answer:

1 1.(20 10 Huai' an, Jiangsu Province, 20 questions) As shown in Figure A, a laser beam hits the O point on the plane mirror and draws its normal light and reflected light.

12.(20 10 Longyan, Fujian, 23 questions) Drawing Title: (1) Please draw the normal light and reflected light in Figure 7 respectively, and calculate the reflection angle as follows. 30

13.(20 10 Xuzhou, Jiangsu, 33 questions) (2) As shown in Figure B, the light AO is incident on the plane mirror. Please make reflected light according to the law of light reflection.

14.(20 10 Lianyungang, Jiangsu, 24 questions) (2) As shown in Figure B, a beam of light obliquely enters the water surface from the air, and the incident light and normal line have been drawn. Please draw incident light, exothermic reflected light and refracted light (note the angle characteristics and mark the arrow direction).

15.(20 10 Wuxi, Jiangsu, 25 questions) As shown in Figure A, a beam of light is reflected on a flat mirror. Please draw the reflected light of incident light AO (normal line is required).

16.(20 10, Guang 'an, Sichuan, 10) The reflected light of the incident light SO is made in Figure 5 by using the drawing method of plane mirror imaging.

Answer:

17.(2 points) (20 10 Neijiang, Sichuan, 8 questions) As shown in the figure, it is a schematic diagram of a bicycle taillight, which itself does not emit light. However, when riding at night, strong light from the car from behind will be reflected back after hitting the taillight, which will make the driver notice that there is a bicycle in front. Please make a rough picture of the optical paths of the three incident rays reflected by the car.

As shown in the figure

Fourth, experimental inquiry questions

1. (Guangzhou, 24 questions, 20 10) As shown in Figure 28, Xiaoming is standing on the subway platform. Through the glass screen door, he can see the billboard on the vertical wall on the other side of the driveway and his virtual image behind the glass screen door. According to this phenomenon, Xiao Ming designed an experiment to roughly measure the distance d between the glass screen door and the billboard on the other side of the driveway on the platform. The experimental steps are as follows. Please complete the relevant content. (2) record; (3) Measured distance. In addition to recording tools, Xiao Ming must use the following instruments to complete the above experiments. The distance measured in step (3) is the distance d between the glass screen door and the billboard.

Answer: (1) When your image falls on the billboard; (2) own position; (3) Stand beside the glass screen door and scale. The distance from the image to the mirror is equal to the distance from the object to the mirror.

2.(20 10, Heze, Shandong, 19) When exploring the "imaging law of flat mirror"

(1) Experiment with a flat mirror (fill in "can" and "can't")

(2) Using flat glass instead of flat mirror to do experiments has the following advantages:

Answer: (1) No (2) You can not only reflect the image like a flat mirror, but also see the candle behind the glass and find the location of the image.

3.(20 10, Jingmen, Hubei, 14) When exploring "the imaging characteristics of flat mirror", we use glass plate instead of flat mirror to do experiments:

(1) Put a lighted candle in front of the glass plate, then take an unlit candle and move it behind the glass plate until it follows the image of the candle in front. If the candle behind the glass plate is removed and a light screen is placed in its place, the image of lighting the candle in front of the glass plate can be observed on the light screen ▲ (select "Yes" or "No").

(2) The experimental results show that the image and the object are the same size; Distance from image to plane mirror ▲ Distance from object to plane mirror.

Coincidence; No; be qualified for sth

4.(20 10 Laiwu, Shandong, 20 questions) During the exploration of optical experiments:

(1) Xiao Ming used the device shown in the figure to study the reflection law of light, including a foldable light screen, which not only can present light in the experiment, but also has another important function: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.

(2) Xiaoming explored the characteristics of flat mirror imaging with transparent glass plates and two identical candles. The purpose of choosing two identical candles is _ _ _ _ _ _ _ _.