. The average life time of an excited state of hydrogen is of the order of

10–8 s. The number of orbits an electron makes, when it is in the state n = 2 (before it starts a transition to a lower state) will be (take T0 to be time period of revolution in ground state in s.)

A. (8/T0) × 10–8

B. T0 × 10–8

C. 10–8/(8T0)

D. T0 /8 × 10–8

Best Answer

Ans: C


Talk to Our counsellor