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Question: The radiation energy density per unit wavelength at a temperature T has a maximum at a wavelength λ<...

The radiation energy density per unit wavelength at a temperature T has a maximum at a wavelength λ0. At temperature 2T2 T, it will have a maximum at a wavelength

A

4λ0

B

2λ0

C

λ0/2

D

λ0/4

Answer

λ0/2

Explanation

Solution

λ0T=λ′×2T\lambda _ { 0 } T = \lambda ^ { \prime } \times 2 T ⇒ λ′=λ02\lambda ^ { \prime } = \frac { \lambda _ { 0 } } { 2 }