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प्रश्न
According to Stefan–Boltzmann Law, if the temperature of a body is doubled (in Kelvin), the heat emitted by it becomes ______.
पर्याय
2 times
4 times
8 times
16 times
MCQ
रिकाम्या जागा भरा
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उत्तर
According to Stefan–Boltzmann Law, if the temperature of a body is doubled (in Kelvin), the heat emitted by it becomes 16 times.
Explanation:
The Stefan–Boltzmann Law states H = σeAT⁴. If T is doubled (2T), the heat emitted becomes σeA(2T)⁴ = 16σeAT⁴, that is, 16 times the original. Heat emission is proportional to the fourth power of absolute temperature.
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