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CMC Medical CMC-Medical Ludhiana Solved Paper-2010

  • question_answer
    In an atom bomb, a temperature of about 10 million degree is developed at the moment of explosion. In what region of At spectrum do the wavelength corresponding to maximum energy density lie, if the light source is in the atom bomb?

    A)  Ultraviolet region           

    B)  Visible region

    C)  Infrared region               

    D)  X-ray region

    Correct Answer: D

    Solution :

                    From Weins law, \[{{\lambda }_{m}}T=\]constant\[=0.3\times {{10}^{-2}}\]                 \[{{\lambda }_{m}}=\frac{0.3\times {{10}^{-2}}}{T}\]                      \[=\frac{0.3\times {{10}^{-2}}}{10\times {{10}^{6}}}\]      \[=3\,\overset{\text{o}}{\mathop{\text{A}}}\,\]


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