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प्रश्न
Sunlight entering through a narrow aperture falls on a prism. Draw a neat labelled ray diagram to show the formation of the spectrum on a screen. Name the colour obtained nearer the base of the prism.
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उत्तर
The labelled ray diagram showing the formation of the spectrum of sunlight on a screen is given below. The colour obtained nearer the base of the prism is violet.


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संबंधित प्रश्न
As light rays emerge from a glass prism into air, are they refracted towards or away from the normal?
Fill in the blank with suitable word:
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Which is refracted most by a prism : red light or violet light? Explain why?
Explain briefly, with the help of a neat labelled diagram, how white light gets dispersed by a prism. On which surface of a prism, there is both dispersion and deviation of light, and on which surface of the prism, there is only deviation of light ?
A wave has wavelength 50Å of name the wave.
The phenomenon of splitting of light into its component colours is ___________ .
Write the range of wavelength of the infrared spectrum.
Why do we see a rainbow in the sky only after rainfall?
In the following diagram showing dispersion of white light by a glass prism, the colours 'P' and 'Q’ respectively are:

