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प्रश्न
Which characteristic property of light is responsible for the blue colour of the sky?
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उत्तर
Dispersion of light
संबंधित प्रश्न
Describe an activity to show that colours of white light splitted by a glass prism can be recombined to get white light by another identical glass prism. Also draw ray diagram to show the recombination of the spectrum of white light.
In the following ray diagram the correctly marked angle are:
(a) ∠i and ∠e
(b) ∠A and ∠D
(c) ∠i, ∠e and ∠D
(d) ∠r, ∠A and ∠D
In the following diagram the correctly marked angles are :
(a) ∠A and ∠e
(b) ∠i, ∠A and ∠D
(c) ∠A ∠r and ∠e
(b) ∠A ∠r and ∠D
In the formation of spectrum of white light by a prism:
which colour is deviated least?
What is a rainbow? What are the two conditions necessary for the formation of a rainbow in the sky?
The frequency range of visible light is from 3.75 × 1014 Hz to 7.5 × 1014 Hz. Calculate its wavelength range. Take speed of light = 3 × 108 m/s.
Answer the following:
What do you mean by dispersion? Name the different colours of light in the proper sequence in the spectrum of light.
State two properties of ultra-violet radiations which differ from visible light.
During dispersion of white light by prism placed in air, for a particular value of angle of prism,
