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Pk Sharma

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· 1 Months ago

अरे वह गोलू टॉप रैंकर (Question:45765.0)

हां भाई toprankr वालों आपने आंसर कुछ और दे रखा है और एक्सप्लेनेशन में कुछ और दे रखा एक्सप्लेनेशन सही दे रखा है इसको सही करो ऐसी गलती मत करा करो

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Pawan Kumar

· started a discussion

· 1 Months ago

एक तारे की टिमटिमाहट _________ के कारण है (Question:45765.0)

wright ans is प्रकाश की अपवर्तन

Question:
The twinkling of a star is due to_______ .
Options:
A) refraction of light
B) reflection of light
C) scattering of light
D) dispersion of light
Solution:
The twinkling of a star is due to atmospheric refraction of starlight. Since the atmosphere bends starlight towards the normal, the apparent position of the star is slightly different from its actual position. This apparent position of the star is not stationary, but keeps on changing slightly due to turbulence in the atmosphere. Since the stars are very distant, they are approximate point-sized sources of light. As the path of rays of light coming from the star goes on varying slightly, the stars appear twinkling to us.

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