Question

# Define critical angle.

Solution

## When light ray travelling in denser medium is incident on the rarer medium at an angle of incidence such that the refracted ray grazes out through the interface boundary ($$\angle{r} = 90^0$$) then the angle of incidence is called critical angle $$i_c$$.$$sin\ i_c = \dfrac{1}{\mu}$$ (If the rarer medium is air)Physics

Suggest Corrections

0

Similar questions
View More

People also searched for
View More