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Solar Energy

if the temper...

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if the temperature of the sun is doubledthen the energy received by the earth will be how many times?

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Q. The temperature of the sun is doubled, the rate of energy received on earth will be increased by a factor of :

Q. If the amount of heat energy received per unit area from the sun is measured on Earth, Mars and Jupiter, it will be:

Q. If the temperature of the Sun were to increase from

T

2 T

and its radius from

R

2 R

, then the ratio of the radiant energy received on Earth to what it previously was, will be :

Q. Heat energy received by the Earth from the Sun is due to

Q. The earth receives solar radiation at a rate of 8.2 J cm

^{- 2}

^{- 1}

. If the sun radiates as the black bodies, the temperature at the surface of the sun will be (the angle subtended by sun on the earth in suppose 0.53

^{o}

and Stefan constant is

σ = 5.67 \times 10^{- 8} W m^{- 2} K^{4}

)

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