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Question

The light from the sun is found to have a maximum intensity near the wavelength of 470 nm. Assuming that the surface of the sun emits as a blackbody, calculate the temperature of the surface of the sun. Given: b(Wein's constant)=0.288 cm K

A
5110 K
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B
4588 K
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C
6130 K
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D
7123 K
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Solution

The correct option is C 6130 K
According to Wien's law, for a blackbody,

λmT=b

T=bλm=0.288×102470×109

6130 K

Hence, (C) is the correct answer.

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