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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`

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The correct Answer is:
`[975 Å]`
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PHYSICS GALAXY - ASHISH ARORA-ATOMIC PHYSICS-Unsolved Numerical Problems
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