2. Questions Bank
  3. JEE Main & Advanced
  4. Physics
  5. Semiconducting Devices

JEE Main & Advanced Physics Semiconducting Devices Question Bank Self Evaluation Test - Semiconductor Electronics: Materials, Devices and Simple Circuits

  • question_answer
    In a p-type semiconductor the acceptor level is situated \[60\text{ }meV\] above the valence band. The maximum wavelength of light required to produce a hole will be

    A)  \[0.207\times {{10}^{-5}}m\]

    B)    \[2.07\times {{10}^{-5}}m\]

    C)  \[20.7\times {{10}^{-5}}m\]

    D)  \[2075\times {{10}^{-5}}m\]

    Correct Answer: B

    Solution :

    [b] \[\lambda =\frac{hc}{E}\] \[=\frac{6.62\times {{10}^{-34}}\times 3\times {{10}^{8}}}{(60\times {{10}^{-3}}\times 1.6\times {{10}^{-19}})}=2.07\times {{10}^{-5}}m\]


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