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A black metal foil is warmed by radiatio...

A black metal foil is warmed by radiation from a small sphere at temperature `T` and at a distance d it is found that the power received by the foil is `P` If both the temperature and the distance are doubled the power received by the foil will be .

A

16 P

B

4P

C

2P

D

P

Text Solution

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The correct Answer is:
B
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MOTION-HEAT TRANSFER & THERMAL EXPANSION -EXERCISE - 2
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