Question

important formulas in refraction of light​

Answer 1

I/v+1/u=1/f

1/f=1/v-1/u

M=-v/u

M=h’/h

Answer 2

Holla user✔✔

✔✔Refractive index = speed of light / speed of light in any given media.

✔✔ About That que. :-

For example:-

Given 1.8 with respect to air to water and find with respect to water to air .

Hope thse helps u to understand my ans ^_^