Solution: Solar energy of 1 .3×10 can be obtained on the land of1square meter, so the total amount of * * can be obtained on the land of 9.6× 10 with the power of 6 square kilometers (1.3× 10).

So a= 1.248, n= 15.

In fact, this problem is to test the multiplication with the same base. When multiplying, 1.3 and 9.6 are multiplied, and the eighth power of 10 is multiplied by the sixth power of 10. Because these two are powers of the same base, 10 remains unchanged, and it is multiplied and added (8+6= 14). Finally,