1.

When electron jumps from n = 4 level to n = 1 level , the angular momentum of electron changes

Answer»

`(h)/(2pi)`
`(2h)/(2pi)`
`(3h)/(2pi)`
`(4H)/(2pi)`

SOLUTION :`L_(1)=1XX(h)/(2pi)" when n=1"`
`L_(2)=4xx(h)/(2pi)"when n=4"`
`L_(2)-L_(1)=(3h)/(2pi)`


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