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प्रश्न
The phenomenon that causes the twinkling of stars is refraction of light.
उत्तर
The phenomenon that causes the twinkling of stars is refraction of light.
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संबंधित प्रश्न
Atmospheric refraction causes advance sunrise and delayed sunset. By how much time is:
sunset delayed?
State whether the following statement is true or false:
The planets twinkle at night due to atmospheric refraction of light.
Fill in the following blank with suitable word:
We can see the sun about ................ minutes before the actual sunrise and about ................ minutes after the actual sunset because of atmospheric ................
What is atmospheric refraction? What causes atmospheric refraction?
The atmospheric refraction of light causes the twinkling of:
(a) planets only
(b) stars only
(c) planets and stars
(d) stars and satellites
A star sometimes appears brighter and some other times fainter. What is this effect called? State the reason for this effect.
Explain why the planets do not twinkle but the stars twinkle.
Refraction of light by the earth’s atmosphere due to variation in air density is called ____________.
Assertion: Sky appears blue in the day time.
Reason: White light is composed of seven colours.
Explain the refraction of light through a triangular glass prism using a labelled ray diagram. Hence define the angle of deviation.
