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Physics Transmission of Heat Radiation (Stefan's Law) MCQ (Single Correct)

A black body of surface area 10cm 2 is heated to 127°C and is suspended in a room at temperature 27°C. The initial rate of loss of heat from the body at the room temperature will be

A
2.99 W
B
1.89 W
C
1.18 W
D
0.99 W

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Text Solution

Verified by Experts
The correct answer is:
D

Loss of heat

⇒ ⇒ Rate of loss of heat

= 0.99 W.

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