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If lamda1 " and " lamda2 are the wavelen...

If `lamda_1 " and " lamda_2` are the wavelengths of the first members of the Lyman and paschen series respectively, then `lamda_1/lamda_2` is equal to

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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