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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?
Which colour of white light travels fastest in glass?
If a monochromatic beam of light undergoes minimum deviation through an equiangular prism, how does the beam pass through the prism, with respect to its base?
(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.
Fig shows part of the arrangement for obtaining pure spectrum.
(a) Complete thediagram and show how to obtain a pure spectrum.
(b) What are the conditions necessary for obtaining a pure spectrum?
What is understood by the term dispersion of light? What is its cause?
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.
Write the approximate wavelength for red light.
