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Mechanical Engineering · Q1

Heat And Mass Transfer

Engineering and GATE · Mechanical Engineering · question 1

Q1

All radiations in a black body are

A.
Reflected
B.
Refracted
C.
Transmitted
D.
Absorbed
Answer

Answer: Option D

Solution

Answer: Option D
Solution:
an object that absorbs all radiation falling on it, at all wavelengths, is called a black body. When a black body is at a uniform temperature, its emission has a characteristic frequency distribution that depends on the temperature. Its emission is called black-body radiation.
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