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Monochromatic radiation of wavelength la...

Monochromatic radiation of wavelength `lambda` is incident on a hydrogen sample in ground state. hydrogen atoms absorb a fraction of light and subsequently and radiation of six different wavelength .Find the value of `lambda`

A

`80mm`

B

`97.5mm`

C

`105mm`

D

`60mm`

Text Solution

Verified by Experts

The correct Answer is:
B

The atom is excited to n=4state
` (hc)/lambda=E_(4)-E_(1)=12.75eVRightarrowlambda=97.5nm`
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