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The largest wavelength in the ultraviol...

The largest wavelength in the ultraviolet region of the hydrogen spectrum is `122nm`. The smallest wavelength in the infrared region of the hydrogen spectrum (to the nearest interger) is (a) `802nm` (b) `823nm`
(c ) `1882nm` (d) `1648nm`.

A

`802nm`

B

`823nm`

C

`1882nm`

D

`1648nm`

Text Solution

Verified by Experts

The correct Answer is:
B
`1/lambda=PZ^(2) (1/n_(1)^(2)-1/n_(2)^(2))`
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