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प्रश्न
What did Newton demonstrate by his experiments with the prism?
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उत्तर
Newton demonstrated the phenomenon of dispersion of light by his experiments with the prism. He showed that white sunlight is in fact composed of seven colours: violet, indigo, blue, green, yellow, orange and red.
संबंधित प्रश्न
With the help of a labelled diagram, explain why the sun appears reddish at the sun-rise and the sun-set.
Explain giving reason why the sky appears blue to an observer from the surface of the earth? What will the colour of the sky be for an astronaut staying in the international space station orbiting the earth? Justify your answer giving reason.
What information do we get about sunlight from the formation of a rainbow?
Which colour of light has the shorter wavelength − red or violet?
Which phenomenon makes us see the sun:
a few minutes before actual sunrise?
The blue colour of sky is due to:
(a) refraction of light
(b) dispersion of light
(c) diffraction of light
(d) scattering of light
What is the colour of the clear sky during day time? Give reason for it.
Which colour of white light is scattered the least? Give reason.
Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?
How can we explain the reddish appearance of sun at sunrise or sunset? Why does it not appear red at noon?
