Physics
In refraction of light through a prism, the light ray:
- suffers refraction only at one face of the prism
- emerges out from the prism in a direction parallel to the incident ray
- bends at both the surfaces of the prism towards its base
- bends at both the surfaces of prism opposite to its base.
Answer
bends at both the surfaces of the prism towards its base
Reason — This phenomenon occurs because light undergoes refraction twice as it enters and exits the prism. At each surface, the light bends towards the normal due to the change in medium, causing it to deviate from its original path. Since the prism is thicker at the base and thinner at the apex, the net effect of refraction at both surfaces is to bend the light towards the base of the prism.
Related Questions
The refractive index of water with respect to air is 4/3. What is the refractive index of air with respect to water?
A ray of light of wavelength 6600 Å suffers refraction from air to glass. Taking aμg = 3/2, find the wavelength of light in glass.
A ray of light suffers refraction through an equilateral prism. The deviation produced by the prism does not depend on the:
- angle of incidence
- colour of light
- material of prism
- size of prism
In the figure given ahead the correct statement is:
- ABED and ABC are the refracting surfaces.
- line AD is the refracting edge
- angle a is the angle of deviation
- AB is the base of the prism.
