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प्रश्न
Which characteristic property of light is responsible for the blue colour of the sky?
उत्तर
Dispersion of light
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संबंधित प्रश्न
Draw a ray diagram to show the dispersion of white light.
The splitting up of white light into seven colours on passing through a glass prism is called:
(a) refraction
(b) deflection
(c) dispersion
(d) scattering
How does the speed of light determine the optical density of a medium?
The wavelength range of white light is ______.
State two properties of ultra-violet radiations which differ from visible light.
Say TRUE or FALSE
After passing through a prism, white light splits into a band of seven colours
The dispersive powers of flint glass and crown glass are 0.053 and 0.034, respectively and their mean refractive indices are 1.68 and 1.53 for white light. Calculate the angle of the flint glass prism required to form an achromatic combination with a crown glass prism of refracting angle 4°:
A ray of light is incident at 45° on an equilateral prism in the diagram below.
- Name the phenomenon exhibited by the ray of light when it enters and emerges out of the prism.
- State the cause of the above phenomenon mentioned by you.
When sunlight passes through water droplets in the atmosphere it gets dispersed into its constituent colours forming a rainbow. A similar phenomenon is observed when white light passes through a prism.
Instead of sunlight, a green-coloured ray is passed through a glass prism. What will be the colour of the emergent ray?
