JEE Main & Advanced Physics Transmission of Heat Question Bank Topic Test - Transmission of Heat (3-5-21)

  • question_answer
    The wavelength of maximum emitted energy of a body at 700 K is 4.08 \[\mu m\]. If the temperature of the body is raised to 1400 K, the wavelength of maximum emitted energy will be            

    A) \[1.02\ \mu m\]

    B) 16.32\[\mu m\]

    C) 8.16\[\mu m\]

    D) 2.04\[\mu m\]

    Correct Answer: D

    Solution :

    \[{{\lambda }_{{{m}_{1}}}}{{T}_{1}}={{\lambda }_{{{m}_{2}}}}{{T}_{2}}\Rightarrow {{\lambda }_{{{m}_{2}}}}=\frac{{{\lambda }_{{{m}_{_{1}}}}}{{T}_{1}}}{{{T}_{2}}}\]          \[=4.08\times \frac{700}{1400}=2.04\,m\]


You need to login to perform this action.
You will be redirected in 3 sec spinner