A blackbody emits radiation at rate E at temperature T. At what temperature will its radiation rate become 256E?
Options
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A.
2T
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B.
3T
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C.
4T
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D.
8T
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E.
None of the above
Correct Answer (Detailed Explanation is Below)
C.
4T
Detailed Explanation
Since E is proportional to T⁴, the required temperature ratio satisfies x⁴ = 256 = 4⁴, so the temperature is 4T.