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If lambda(1) and lambda(2) are the wavel...

If `lambda_(1) and lambda_(2)` are the wavelength of the first members of the Lyman and Paschen series, respectively , then `lambda_(1) lambda_(2)` is

A

`1:3`

B

`1:30`

C

`7:50`

D

`7:108`

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The correct Answer is:
D
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