Question

(i) A ray of light falls normally on a face of a glass slab. What are the values of angle of incidence and angle of refraction of this ray?
(ii) Light enters from air to a medium ‘X’. Its speed in medium ‘X’ becomes 1·5 × 108 m/s. Speed of light in air 3 × 108 m/s. Find the refractive index of medium ‘X’.

Answer 1

Answer:

(i) When a ray of light falls on a glass slab normally, angle between normal and incident ray is zero. ∴ Angle of incidence is zero. ← Prev

(i) The answer is 2

Explanation:

ok i am brilliant