ChemistryThe wavelength of the radiation emitted, when in a hydrogen atom electron falls from infinity to stationary state l, would be (Rydberg constant = 1.097×107m−1)

The wavelength of the radiation emitted, when in a hydrogen atom electron falls from infinity to stationary state l, would be (Rydberg constant = 1.097×107m1)

  1. A

    91 nm

  2. B

    192 nm

  3. C

    406 nm

  4. D

    9.2×108nm

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    Solution:

       We have    ΔE~=R(1n121n22)=R(1l212)=R;    λ=1R~=0.91×107m=91  nm

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