Question

The time taken by Sunlight to penetrate 3mm of glass slab ( meu= 1.5)
1) 1.5×10-11sec
2) 3×10-19sec
3) 3×10-10sec
4) 1.5×10-7sec

Answer 1

Answer:

1) 1.5*10^-11

Explanation:

3* 10^-3/(3* 10^8/1.5) =  1.5 * 10^-11