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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

sizes of the two nuclei are different

B

nuclear forces are different in the two cases

C

masses of the two nuclei are different

D

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

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The correct Answer is:
C
The wavelength involved in the spectrum of deuterium `(._(1)^(2)D)` are slightly different from that of hydrogen spectrum because masses of two nuclei are different.
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