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NEET 2002 Physics question

PhysicsThermal Properties of MatterNEET 2002

For a black body at temperature , its radiating power is 60 watt and temperature of surrounding is . If temperature of black body is changed to then its radiating power will be :

Answer: (2)

Solution

The net radiating power is . Temperatures in kelvin: , , . $ = =

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Question ID VK-088952