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In a hydrogen like ion, nucleus has a po...

In a hydrogen like ion, nucleus has a positive charge Ze, Bohr's quantization rule is, the angular momentum of an electron about the nucleus `l = (nh)/(2pi)`, where 'n' is a positive integer.
Change in K.E of electron when it goes from ground state to 1st excited state

A

`(3)/(32)(m_(e)ze^(4))/(in_(0)^(2)h^(2))`

B

`(-3)/(32)(m_(e)ze^(4))/(in_(0)^(2)h^(2))`

C

`(1)/(32)(m_(e)ze^(2))/(in_(0)^(2)h^(2))`

D

`(-1)/(32)(m_(e)ze^(2))/(in_(0)^(2)h^(2))`

Text Solution

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The correct Answer is:
B
`K.E.=-` (Total Energy)
`Delta KE = - (3)/(2) (zme^(4))/(in_(0)^(2)h^(2))`
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