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In solar radiation, the intensity of radiation is maximum around the wavelength λ .  If R is the radius of the sun and c is the velocity of light, the mass lost by the sun per second is proportional to     

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By Expert Faculty of Sri Chaitanya
a
R2λ4c2
b
R2λ2c2
c
R3λ4c3
d
R3λ4c2

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detailed solution

Correct option is A

According Stefan’s lawQt=σ4πR2T4=mc2Where m is the mas converted to energy per sec. but  λmT=constantT∝1λm=σ4πR2T4c2∝R2λ4c2


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If there are two bodies at different temperatures, the wavelength of radiation (in which maximum radiation energy is distributed):

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