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Inorganic Chemistry

Quick practice

Question 1 of 5

A stationary \mathrm{He}^{+} ion emits a photon corresponding to the first line \left(\mathrm{H}_{\alpha}\right) of Lyman series. The photon thus emitted, strikes a H-atom in the ground state. Find the wavelength of the photoelectron ejected out of the hydrogen atom.

The value of \mathrm{R}=1.097 \times 10^{7} \mathrm{~m}^{-1}

A

2.66 \AA

B

2.76 \AA

C

2.46 \AA

D

2.36 \AA

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