Question

The frequency of revolution of electron in first excited state in Hydrogen is 7.8×10¹⁴s⁻¹. The frequency of revolution of electron is ground state in H+ will be close to (in s⁻¹ ):
A. 6.2×10¹⁵
B. 3.1×10¹⁵
C. .2×10¹⁶
D. 2.5×10¹⁶