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Two identical objects A and B (emissivit...

Two identical objects A and B (emissivity `e_(A)` and `e_(B),e_(A)ne e_(B)`) are planced in an enclosure, Temperature of body A, B and enclosure are same and constant.

A

Heat emitted by body `A` is not equal to heat emitted by body `B`

B

Heat absorbed by body `A` is not equal to heat absorbed by body `B`

C

If `e_(A)gte_(B)`, body `A` absorbs more heat than body `B`

D

If `e_(A)lte_(B)`, body `A` emits less heat than body `B`

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D

Emissivity of body `e`
Area of body `A`
Temperature of body `T_(B)`
Temperature of environment `T_(0)`
Heat energy radiated by body `=esigmaAT_(B)^(4)`
Absorbed by body `=esigmaAT_(0)^(4)`

`e_(A)!=e_(B)`
Then heat emitted by a body is not equal to `B`
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