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प्रश्न
Name the process which is involved in the formation of a rainbow.
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उत्तर
The dispersion of sunlight is the process that is involved in the formation of a rainbow.
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संबंधित प्रश्न
Why do the component colours of incident white light split into a spectrum while passing through a glass prism, explain
Define the term dispersion of white light.
As light rays emerge from a glass prism into air, are they refracted towards or away from the normal?
Draw a diagram to show the refraction of light through a glass prism. On this diagram, mark
(i) incident ray
(ii) emergent ray, and
(iii) angle of deviation.
A beam of white light is shone onto a glass prism. The light cannot be:
(a) deviated
(b) dispersed
(c) focused
(d) refracted
The coloured light having the maximum speed in glass prism is:
(a) blue
(b) green
(c) violet
(d) yellow
How does the speed of light determine the optical density of a medium?
- 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)?
When a white light ray falls on a prism, the ray at its first surface suffers ______.
When we place a glass prism in the path of a narrow beam of white light a spectrum is obtained. What happens when a second identical prism is placed in an inverted position with respect to the first prism? Draw a labelled ray diagram to illustrate it.
If white light is used in same way what change is expected in the emergent beam?
The wavelengths of violet and red light are 4000 Å and 8000 Å respectively. Which of the two has the higher frequency?
Write the range of wavelength of the infrared spectrum.
Draw a neat and labelled diagram for dispersion of light.
Observe the given figure and write appropriate phenomenon of light in the box.

Why do we see a rainbow in the sky only after rainfall?
State the correct sequence (1-7) of colours in the spectrum formed by the prisms A and B, shown in the following figure.

In dispersion, the color of light that will bend more is ______.
State the colour which bends:
- The most.
- The least while passing through a glass prism.
