Fundamentholfundamenthol
JEE Main2019Physics
Q.

Consider an electron in a hydrogen atom, revolving in its second excited state (having radius 4.65 Å). The de-Broglie wavelength of this electron is :

  1. A

    3.5 Å 

  2. B

    12.9 Å 

  3. C

    9.7 Å 

  4. D

    6.6 Å 

Solution

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