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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
Why does the sun appear reddish early in the morning? Will this phenomenon be observed by an observer on the moon? Justify your answer with a reason.
Which colour of light has the shorter wavelength − red or violet?
Name some everyday objects:
which absorb all the colours in sunlight
Explain why, if we look at objects through the hot air over a fire, the objects appear to be moving (or shaking) slightly.
Which effect is illustrated by the observation that when a beam of sunlight enters a dusty room, then its path becomes visible to us.
Complete the following statement:
When the sun is setting, the light from it has to travel a ................ thickness of the earth's atmosphere and only ................ wavelength ................ light is able to reach us. Sunset is therefore ................
The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light ____________.
Which of the following statements is correct regarding the propagation of light of different colours of white light in the air?
Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?
Blue colour of sky is due to the phenomenon of
