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The transistion from the state n = 4 to ...

The transistion from the state `n = 4` to `n = 3` in a hydrogen like atom results in ultraviolet radiation infrared radiation will be obtained in the transition from :-

A

`2to1`

B

`3to2`

C

`4to2`

D

`5to4`

Text Solution

Verified by Experts

The correct Answer is:
D
The frequency of ultraviolet rays is high and the frequency of infrared is low. Hence the transition of electron should take place in an orbit such that the order of the orbit is the highest in the given order. Such order is in option (D) `5to 4`. This emit radiation in Brackett series and it is in the infrared region.
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