

MCQOPTIONS
Saved Bookmarks
1. |
In the formula, 1/λ = R(1/52 - 1/n2) which represents the Pfund spectral series for hydrogen, 'R' is _____________ constant |
A. | Planck |
B. | Bohr |
C. | Thomson |
D. | Rydberg |
Answer» E. | |