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The ratio of wavelength of the lest line...

The ratio of wavelength of the lest line of Balmer series and the last line Lyman series is:

A

`1`

B

`4`

C

`0.5`

D

`2`

Text Solution

Verified by Experts

The correct Answer is:
B
`1/(lambda_(B))=R(1/(2^(2))-1/(oo))=R/4`
`1/(lambda_(L))=R(1/(1^(2))-1/(oo))=R`
`(lambda_(B))/(lambda_(L))=4`
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