JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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The luminosity of the Rigel star is 17000 times that of the sun. Assume both to be perfectly black bodies. If the surface temperature of the sun is 6000 K, then the temperature of the star is

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Correct option: A

68400\mathrm{ }K

The temperature of the star is calculated using the Stefan-Boltzmann law, resulting in 68400 K, so Option A (

68400\mathrm{ }K

) is correct.

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