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Two objects A& B have exactly the same s...

Two objects `A`& `B` have exactly the same shape and are radiating the same power If their temperatures are in the ratio `sqrt3 : 1` then the ratio of their emissivities is .

A

`1:9`

B

`1:9`

C

`3:1`

D

`1:3`

Text Solution

Verified by Experts

The correct Answer is:
A
`P=esigmaAT^(4)rArr(e_(1))/(e_(2))=((T_(2))/(T_(1)))^(4)`
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