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Find the mass of the Sun knowing the ave...

Find the mass of the Sun knowing the average distance from the Earth to the Sun (the astronomical unit) and the orbital period of the Earth.

Text Solution

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The correct Answer is:
`1.99 xx 10^(30)`kg.
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Knowledge Check

  • The average distance from the sun to earth is,

    A
    150 million kilometers
    B
    57.8 million km
    C
    227.9 mkm
    D
    778.2 mkm

  • The distance of the earth from the sun is about

    A
    1500 million km .
    B
    300 million km
    C
    227 million km
    D
    149 million km.

  • The average distance between the earth and the sun is called

    A
    astronomical unit
    B
    light year
    C
    parallactic second
    D
    none of these

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    The solar constant is the amount of heat energy received per second per unit area of a perfectly black surface placed at a mean distance of the Earth form the Sun, in the absence of Earth's atmosphere, the surface being held perpendicular to the direction of Sun's rays. Its value is 1388 W//m^(2) . If the solar constant for the earth is 's'. The surface temperature of the sun is TK,D is the diameter of the sun, R is the mean distance of the Earth from the sun. The sun subtends a small angle 'theta' at the earth. Then correct options is/are:-

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