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Kirchoff's Law

For a body, a...

Question

For a body, absorptive power is 0.6, then emissivity of the body must be

A

0.4

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B

0.64

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C

1.6

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D

0.6

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Solution

The correct option is D $0.6$
If a body has high absorptive power, it is sure to have high emissivity too. Because good absorbers are good emitters.
$∴ e = a = 0.6$

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