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MHT CET Physics question

PhysicsThermal Properties of MatterMHT CET

An object is at temperature of 400°C. At what temperature it would radiate energy twice as fast as initial rate? The temperature of the surroundings may be assumed to be negligible

Answer: (D)

Solution

K (about 527°C), so 800 K is correct while 200°C,

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Question ID VK-063081