The correct statement is
The speed of all colors of light is same in air
The violet light travels than the red light in air
The red light travels faster than the violet light in air
None of the above.
When a ray of light from air enters a denser medium, it
Bends away from the normal
Bends towards the normal
Goes on deviated
Is reflected back
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.
A glass slab is placed over a piece of paper on which VIBGYOR is printed with each letter into its corresponding colors. The letter of which colour appears to be raised maximum of which color minimum?
Violet and Indigo
Red and Violet
Violet and Red
Orange and Red
Red light of wavelength 6600 Å traveling 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 wavelength of light in water is
2950 Å
5920 Å
4950 Å
1950 Å
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.
During refraction of light, which of the following quantities does not change
Wave length
Frequency
Direction
Speed.
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
Refractive index of water is 4/3 speed of light in vaccum is 3x108ms-1. Then the speed of light in water is:
1.33 x 2,25 x 108ms-1
2.25 x 108ms-1
2.25 x 107ms-1
1.25 x 108ms-1
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.
