A total reflecting prism can be used to deviate a ray of light through
30o
60o
75o
90o
Red light of wavelength 6600 A0 travelling in air gets refracted in water. If the speed of light in air is 3x108 ms-1 and refractive index of water is 4/3. Then the frequency of light in air is.
2.25x108 Hz
4.54 x 10 14Hz
4.54 x 108 Hz
2.54 x 1014 Hz.
With increase in angle of incidence of incident light, the angle of deviation produced by the prism.
Decreases
Increases
First decreases, becomes minimum and then increases.
First increases becomes maximum and then decrease.
A ray of light incident at an angle 48o on a prism of refracting angle 60o suffers minimum deviation. Then the angle of minimum deviation is.
12o
108o
36o
158o
A ray of light falls normally on a glass slab. What is the angle of refractions?
180o
45o
0o
Which of the following has the highest refractive index:
Glass
Water
Diamond
Ruby
A small air bubble in a glass block when seen from above appears to be raised because of
Refraction of light
Reflection of light
Reflection and refraction of light
None of these.
A water pond appears to be 2.7m deep. If the refractive index of water is 4/3. Then the actual depth of the pond is
3.6 m
7.2m
4.8m
3.8m
The deviation produced by an equilateral prism, when a ray of light is incident on it, does not depend on:
Angle of incidence
Color of light
Material of prism
Angle of prism.
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 surface of prism towards its base.
Bends at both the surface of prism opposite to its base.
