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Given below are two statements.One is labeled Assertion (A) and the other is labeled Reason (R)
Assertion: As the temperature of a black body increases, the wavelength at which the spectral intensity is maximum also increases
Reason: The emissive power of a black body is inversely proportional to fourth power of the wavelength corresponding to maximum intensity
in light of the given statements, choose the correct answer from the options given below.

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Assertion is true, Reason is true; Reason is the correct explanation for Assertion

Assertion is true, Reason is true; Reason is not a correct explanation for Assertion

Assertion is true; Reason is false

Assertion is false; Reason is true

answer is D.

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Detailed Solution

According to Wein’s displacement law, $λ \propto \frac{1}{T}$ . So statement is false.

According to Stefan’s law, $E \propto T^{4} \propto \frac{1}{λ^{4}}$

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