34. [Physics-Elective 3-4] (15)
(1)(5 points) In the double-slit interference experiment, green laser is irradiated on the double slit, and the interference pattern is displayed on the screen behind the slit. If you want to increase the spacing between two adjacent bright stripes in the interference pattern, you can choose _ _ _ _ (choose 1 to get 2 points, choose 2 to get 4 points, and choose 3 to get 5 points; 1 Deduct 3 points for each wrong item, with the lowest score of 0).
A. switch to red laser B. Switch to blue laser
C. Reduce the gap between the double seams D. Move the screen away from the double seams.
E. move the light source away from the double seam.
(2)( 10) The height of the straight cylindrical container is 2l, and the bottom is a square with a side length of l; There is some transparent liquid in the container, and the cross-sectional view passing through the central axis DD' of the container and perpendicular to the left and right sides is shown in the figure. The inner wall on the right side of the container is coated with reflective material, and the other inner walls are coated with light-absorbing material. There is a light source in the lower left corner of this part. It is known that the two beams of light emitted from point D on the upper surface of the liquid are perpendicular to each other, and the refractive index of the liquid is calculated.
36. [Chemistry-Elective 5: Fundamentals of Organic Chemistry] (15)
Compound G is an intermediate of bisoprolol, a drug for treating hypertension. The route of synthesizing G is as follows:
The following information is known:
① The * * * NMR spectrum of A is unimodal; The NMR spectrum of B consists of three groups of peaks, and the peak area ratio is 6∶ 1∶ 1.
② There are only two kinds of hydrogen in different chemical environments on the benzene ring of D; 1 mol can react with 1 mol NaOH or 2 mol Na.
Answer the following questions:
The short structure of (1)A is _ _ _ _ _ _ _.
(2) The chemical name of B is _ _ _ _ _ _ _.
(3) The chemical equation for the reaction of C and D to form E is _ _ _ _ _ _ _ _.
(4) The reaction type of F from E is _ _ _ _ _ _ _ _.
(5)G is _ _ _ _ _ _.
(6)L is the isomer of D, which can react with FeCl3 solution, 1mol L can react with 2mol Na2CO3, and there are _ _ _ _ _ _ _ _ _ kinds of L * *, in which * * * has four groups of peaks in the NMR spectrum, and the structural formula of peak area ratio is 3∶2∶2∶ 1
The above are some of the questions and answers in the two-volume science comprehensive examination paper of the national college entrance examination for reference only.