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If the series limit frequency of the Lym...

If the series limit frequency of the Lyman series is `v_(L)`, then the series limit frequency of the Pfund seriesis :

A

`v_(L)//16`

B

`v_(L)//25`

C

`25v_(L)`

D

`16v_(L)`

Text Solution

Verified by Experts

The correct Answer is:
B
For Lyman ,
`n_(1) =1 and n_(2) = oo`
`f_(L) = RCz^(2)(1/1 - 1/oo) = RCz^(2)`
For Pfund ,
`n_(1)=5 and n_(2) = oo`
`f_(p) RCz^(2) (1/25 - 1/oo)= (f_(L))/25` .
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