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    sophia jain Posts: 2, Reputation: 1
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    Feb 23, 2014, 12:27 PM
    Heat
    in solar radiation the intensity of radiation is maximum around the wavelength λm , if r is the radius of the sun and c is the velocity of light the mass lost by the sun per unit time is proportional to?

    ans is r^2/λ^4.c^2

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