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प्रश्न
Which colour of white light travels slowest, in glass?
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उत्तर
Violet colour travels slowest in glass.
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संबंधित प्रश्न
Name three factors on which the deviation produced by a prism depends and state how does it depend on the factors stated by you.
How does the deviation produced by a triangular prism depend on the colours (or wavelengths) of light incident on it?
In following diagram shows a thin beam of white light from a source S striking on one face of a prism.
A slit is placed in between the prism and the screen to pass only the light of green colour. What will you then observe on the screen?
(i) Draw a diagram to show the splitting of white light by a prism into its constituent colour.
(ii) Draw another diagram to show how the colours of spectrum of white light can be combined
to give the effect of white light.
Write the approximate wavelengths for blue.
Draw another diagram to show how the colours of spectrum of white light can be combined to give the effect of white light.
Light of different colours is deviated through different angles by a prism. Explain the reason.
Give a reason, why the violet colour of white light deviated most and red colour of white light deviated least.
A prism causes dispersion of white light while a rectangular glass block does not. Explain.
Comment on the statement: ‘When any ray of white light is incident on a glass prism, it simply disperses it into its seven constituent colours.
