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प्रश्न
Define the term dispersion of light.
Define dispersion of light.
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उत्तर १
The phenomenon of the splitting of white light by a prism into its constituent colours is known as dispersion of light.
उत्तर २
When a beam of white light or composite light is refracted through any transparent media such as glass or water, it is split into its component colours. This phenomenon is called ‘dispersion of light’.
संबंधित प्रश्न
As light rays emerge from a glass prism into air, are they refracted towards or away from the normal?
When a beam of white light is passed through a prism, it splits to form lights of seven colours. Is it possible to recombine the lights of seven colours to obtain the white light again? Explain your answer.
The colour of white light which suffers the maximum bending (or maximum refraction) on passing through a glass prism is:
(a) yellow
(b) orange
(c) red
(d) violet
The coloured light having the maximum speed in glass prism is:
(a) blue
(b) green
(c) violet
(d) yellow
Which is optically denser: water or air? Give reason
A ray of white light falls on a prism. Draw a ray diagram to show that the prism disperses the white light.
- A beam of monochromatic light undergoes minimum deviation through an equiangular prism, how does the beam pass through the prism, with respect to its base?
- If white light is used in the same way as in part (a) above, what change do you expect in the emergent beam?
- What conclusion do you draw about the nature of white light in part (b)?
Differentiate between a glass slab and a glass prism.
State two properties of ultra-violet radiations which differ from visible light.
Write the range of wavelength of the visible spectrum.
The process of separation of light into its component colours while passing through a medium is called _______.
The splitting of white light in to seven colors is called ______.
Say TRUE or FALSE
Rainbow is formed by dispersion of which light by water drops
Which of the following is a natural phenomenon which is caused by the dispersion of sunlight in the sky?
What is Newton’s disc?
The periscope is an optical device with a polished surface that reflects the light falling on it.
dispersive power of crown glass? Given that µv = 1.5230, µr = 1.5145
In the following diagram showing dispersion of white light by a glass prism, the colours 'P' and 'Q’ respectively are:
