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The wavelength involved in the spectrum ...

The wavelength involved in the spectrum of deuterium `_(1)^(2)D` are slightly different from that of hydrogen spectrum because

A

The attraction between the electron and the nucleus is different in the two cases

B

The size of the two nuclei is different

C

The nuclear forces are different in the two cases

D

The masses of the two nuclei are different

Text Solution

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The correct Answer is:
D
`lambda prop 1/m " " [lambda =h/(mv)]`
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