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Heat Transfer - Engineering

Q1:

Radiant energy received by a body is proportional to (where, d = the distance between the object emitting radiation and that receiving it.)

A d

B d

C d2

D d1.5

ANS:C - d2

The radiant energy received by a body is inversely proportional to the square of the distance (d) between the object emitting radiation and the object receiving it. This relationship is known as the inverse square law. Therefore, the correct option is: d−2