Question

( 1 )
(a) The refractive index of glass with respect to air is 3/2. What will be the refractive index of air with respect to glass?
(b) some pieces of glass is seen immersed in a liquid. On heating the liquid, at a certain temperature they are not seen. Explain the reason.
( 2 ) A ray of light is incident normally on a plane glass slab. What will be
(a)The angle of refraction
(b) The angle of deviation

Answer 1

answer for a) is 2/3