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Question

The frequency left parenthesis V subscript m end subscript right parenthesis corresponding to which energy emitted by a black body is maximum may vary with temperature T of the body as shown in figure. Which of the curves represents correct variation?

  1. A    
  2. B    
  3. C    
  4. D    

The correct answer is: A


    According to Wien’s displacement law,
    lambda subscript m end subscript proportional to fraction numerator 1 over denominator T end fraction o r fraction numerator c over denominator v subscript m end subscript end fraction proportional to fraction numerator 1 over denominator T end fraction i e comma blank v subscript m end subscript blank proportional to T
    Hence, curve A represents the correct variation.

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