average lifetime of a hydrogen atom excited to n=2 state is 10^-8s.find the number of revolutions made by the electron on the average before it jumps to the ground state

Dear Ayushi,

ν = E /h

= -2.18 x 10^-18 x 16/4

= 8.72 x 10^-18 j

ν = 8.72 x 10^-18/6.634 x 10^-34 s^-1

= 1.31 x 10¹⁶ s-1

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