NTA Abhyas JEE Main2020ChemistryStructure of AtomPractice

An electron in an atom jumps in such a way that its kinetic energy changes from x to x 9 . The change in its potential energy (magnitude) will be-

Options

Ax 9
B16 x 9
C9 x
D9x 16

Correct answer

B. 16 x 9

Step-by-step solution

Change in kinetic energy is x − x 9 = 8 x 9 For Bohr model of atom The kinetic energy in a state is equal to half of the potential energy in magnitude. ∴ P o t e n t i a l e n e r g y = 2 K i n e t i c e n e r g y 2 × 8 x 9 = 16 x 9

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