Question

solve this plzzzz
plz solve it step by step

Answer 1

n = c/v
v = c/n = 3*10^8/1.5 = 2*10^8m/s

Answer 2

Given the refractive index of glass = 1.50.

Let the speed of the light in class be x.

We know that Air in glass = (Speed of the light in air)/(speed of the light in glass).

= > (1.50) = (3 * 10^8)/x

= > x * 1.50 = 3 * 10^8

= > x = (3 * 10^8)/1.5

= > x = 2 * 10^8.


Therefore the speed of the light in glass = 2 * 10^8 m/s.


Hope this helps!