Question

Q10) The angle of refraction in a glass block of Ri. 1,5 is 19° Calculate the angle of incidence. Sm19=1/3 Q11) Calculate the R.I. of a material when angle of incidence in air is 50° & angle of refraction in

material is 36°

Q12) R.I. of water is 4/3. Calculate the speed of light in water. The velocity of light in vacuum is

3x10 m/s.

Q13) The R.I. of water is 4/3 & that of glass is 3/2. What is the R.I. of glass with respect to water?

Q14) A ray of light strikes a glass slab 5 cm. thick, making an angle of incidence of 30°. Construct the ray diagram showing the refracted ray & the emergent ray through the glass block. The R.I. of glass is 1.5.

​

Answer 1

Answer:

1 When a light ray incident from air to glass and reflected, angle of incidence is 57 ... 25 How does refractive index ( ) of a material vary with respect to ... Calculate the least radius of an