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The shortest wavelength of H-atom in Lym...

The shortest wavelength of H-atom in Lyman series is x, then longest wavelength in Balmer series of `He^(+)` is

A

`(9 lambda)/(5)`

B

`(36 lambda)/(5)`

C

`(5 lambda)/(9)`

D

`(5)/(9 lambda)`

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A
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