Q36 / 99 · NTA Abhyas (JEE Main) 2020 · Chemistry · Structure of Atom

An electron in an atom jumps in such a way that its kinetic energy changes from x to x9. The change in its potential energy (magnitude) will be-

  • A
    x9
  • Correct answer
    B
    16x9
  • C
    9x
  • D
    9x16

Solution

Change in kinetic energy is

x−  x 9 = 8x 9

For Bohr model of atom

The kinetic energy in a state is equal to half of the potential energy in magnitude.

∴Potential energy

=2 Kinetic energy

2×8x9 =16x9

Hence, the correct answer is option: 'B'.

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