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Suggest two transitions in hydrogen spec...

Suggest two transitions in hydrogen spectrum for which the number ratio is 108:7

A

`2 rarr 1, 3 rarr 1`

B

`2 rarr 1, 4 rarr 3`

C

`2 rarr 1, 5 rarr 4`

D

`2 rarr 1, 3 rarr 1`

Text Solution

Verified by Experts

The correct Answer is:
B
`bar(v)_(2-1) = R[(1)/(1^(2))-(1)/(2^(2))] = (3)/(4) R`
`bar(v)_(4-3) = R[(1)/(3^(2))-(1)/(4^(2))] = (7)/(144) R`
`:. bar(v)_(2-1) : bar(v)_(4-3) = (3)/(4) xx (144)/(7)` or `108:7`.
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