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प्रश्न
What happens when a beam of sunlight enters a dusty room through a window? Explain your answer.
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उत्तर
A beam of sunlight becomes visible when it enters a dusty room through a window. This is because the dust particles present in the air in the room scatter the light all around the room. This scattered light enters our eyes, enabling us to see the beam of sunlight.
संबंधित प्रश्न
Why does sun appear red at sunrise and sunset?
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.
Name a natural phenomenon which is caused by the dispersion of sunlight in the sky.
What did Newton demonstrate by his experiments with the prism?
Which component of sunlight is scattered away when the sun appears red at sunrise or sunset?
In an experiment to study the scattering of light by passing a beam of white light through a colloidal solution of sulphur in a transparent glass tank:
Which colour is observed from the front of the glass tank? Does this colour correspond to the colour of sky on a clear day or the colour of sky around the sun at sunset?
Explain why, when the sun is overhead at noon, it appears white, but when the same sun is near the horizon at sunset, it appears red.
When sunlight enters the earth’s atmosphere, state which colour of light is scattered
- the most and
- which the least.
Explain in brief the reason for the following :
Advanced sunrise
Explain in brief the reason for the following:
Twinkling of stars
