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14 Sep 2009 21:56:35 IST

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How will you ?weigh the sun?, that is estimate its mass? The mean orbital radius of the earth around

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How will you ‘weigh the sun’, that is estimate its mass? The mean orbital radius of the earth around the sun is 1.5 × 108 km.

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I am Suraj using the account on name of Akshant Sir

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14 Sep 2009 21:59:26 IST

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Using law of gravitation...

apollo

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14 Sep 2009 22:01:10 IST

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www.scribd.com/doc/13655663/ch8

Suresh Kumar

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14 Sep 2009 22:01:34 IST

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hello dear

Orbital radius of the Earth around the Sun, r = 1.5 × 10¹¹ m

Time taken by the Earth to complete one revolution around the Sun,

T = 1 year = 365.25 days

= 365.25 × 24 × 60 × 60 s

Universal gravitational constant, G = 6.67 × 10^–11 Nm² kg^–2

Thus, mass of the Sun can be calculated using the relation,

Hence, the mass of the Sun is 2 × 10³⁰ kg.

Sagar Sinha

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Joined: 28 May 2010

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2 Apr 2011 03:38:51 IST

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Sir why r we taking time period as 1 year???

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