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Question: Answered & Verified by Expert
Assertion : For higher temperatures the peak emission wavelength of a black body shifts to lower wavelengths.
Reason : Peak emission wavelengths of a blackbody is proportional to the fourth-power of temperature.
PhysicsThermal Properties of MatterAIIMSAIIMS 2005
Options:
  • A If both assertion and reason are true and reason is the correct explanation of assertion
  • B If both assertion and reason are true but reason is not the correct explanation of assertion
  • C If assertion is true but reason is false
  • D If both assertion and reason are false.
Solution:
1833 Upvotes Verified Answer
The correct answer is: If both assertion and reason are true but reason is not the correct explanation of assertion
Wien's relation gives $\lambda$ at maximum intensity, $\lambda_m \cdot T=$ constant


Stefan's law,
$\sigma T^4=$ Intensity of emission of a particular wavelength does not explains the shift of $\lambda_m$ with absolute temperature.

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