Question

in an experiment with a rectangular glass slab for an angle of incidence 60 degree angle of refraction is measured to be R1 when the glass slab is replaced by a hollow slab filled with water angle of refraction is measured R2 show that R2 is greater than R1

Answer 1

Glass is optically denser than water i.e glass has more refractive index than water.So, when light ray travels from air into glass it bends more towards normal than when the ray enters from air to water.As the light ray bends more in the case of glass,R1 is lesser than R2

Hope it helps!

Answer 2

Answer:

r2>r1. this is correct option