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Sodium lamp emits yellow light of wavele...

Sodium lamp emits yellow light of wavelength `5800 Å` the wave number of the light is

A

`1.72xx10^(6)//m`

B

`17.2xx10^(8)//m`

C

`5.17xx10^(14)//s`

D

`17.2xx10^(7)//m`

Text Solution

Verified by Experts

The correct Answer is:
A
Wave number `=1/lambda`
`=1/(5800xx10^(-10)m)=1.724xx10^(6)//m`
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