Q210 / 225 · JEE Main 2003 · Physics

The wavelengths involved in the spectrum of deuterium $\left({ }_1^2 \mathrm{D}\right)$ are slightly different from that of hydrogen spectrum, because

A
the size of the two nuclei are different
B
the nuclear forces are different in the two cases
Correct answer
C
the masses of the two nuclei are different
D
the attraction between the electron and the nucleus is different in the two cases

Hence, the correct answer is option: 'C'.

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