Adaptive Practice
Light - Refraction
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Easy
What is refraction of light?
Easy
When light passes from air into water, it bends:
Medium
The refractive index of a medium is defined as the ratio of:
Medium
If the refractive index of glass is 1.5, what is the speed of light in glass? (Speed of light in air = 3 × 10^8 m/s)
Medium
Which of the following phenomena is NOT due to refraction of light?
Medium
A ray of light passes from water (n=1.33) to glass (n=1.5). What happens to the speed of light?
Hard
The critical angle for a glass-air interface is 42°. What happens if the angle of incidence in glass is 50°?
Hard
Which of the following correctly describes total internal reflection?
Hard
A ray of light enters a glass slab at an angle of 30° and emerges out parallel to the incident ray. What is the lateral displacement?
Hard
In an experiment, the angle of incidence is 45°, angle of refraction is 30°. What is the refractive index of the second medium?