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प्रश्न
How does the deviation produced by a triangular prism depend on the colours (or wavelengths) of light incident on it?
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उत्तर
The deviation caused by a prism increases with the decrease in the wavelength of light incident on it.
संबंधित प्रश्न
Why is the colour red used as a sign of danger?
Name three factors on which the deviation produced by a prism depends and state how does it depend on the factors stated by you.
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?
Write the approximate wavelengths for blue.
Name the radiation of a wavelength longer than 8 × 10−7 m.
A prism causes dispersion of white light while a rectangular glass block does not. Explain.
Draw a neat diagram to show the arrangement you would use to project a pure spectrum of white light on a screen.
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.
Which colour of white light travels slowest, in glass?
Write the approximate wavelength for red light.
