Question

# According to Wien's displacement law:

A
T3>T2>T1
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B
T1>T2>T3
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C
T3=T2=T1
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D
T2>T3>T1
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Solution

## The correct option is A T3>T2>T1Given graph describes the Energy density of radiated energy with wavelength at different temperature. According to Wein's displacement law, λm.T=b [constant] ⇒T ∝ 1λm From the graph, λm1>λm2>λm3 ⇒ T1<T2<T3 Hence, option (A) is correct. Why this question? Concept: Temperature of the black body is inversely proportional to the wavelength of the light having maximum intensity emitted by them. It is given by Wein’s displacement law.

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