If R1 is the value of the Rydberg constant assuming mass of the nucleus to be infinitely large compared to that of an electron, and if R2 is the Rydberg constant taking nuclear mass to be 7500 times the mass of the electron, then the ratio $$\frac{{{R_2}}}{{{R_1}}}$$ is
A. a little less than unity
B. a little more than unity
C. infinitely small
D. infinitely large
Answer: Option A
This Question Belongs to Engineering Physics >> Atomic And Molecular Physics
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