SATHEE: Transmission Of Heat Question 158

Transmission Of Heat Question 158

Question: A hot body will radiate heat most rapidly if its surface is

[UPSEAT 1999, 2000]

Options:

A) White & polished

B) White & rough

C) Black & polished

D) Black & rough

Show Answer

Answer:

Correct Answer: D

Solution:

Black and rough surfaces are good absorber that’s why they emit well. (Kirchoff’s law).

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Transmission Of Heat Question 158

Question: A hot body will radiate heat most rapidly if its surface is

Options:

Answer:

Solution:

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