Question

An electron in the hydrogen atom jumps from excited state n to the ground state. The wavelength so emitted illuminates a photosensitive material having work function . If the stopping potential of the photoelectron is , then the value of  is :-

A

B

C

D

Medium

Solution

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Correct option is B)




Differenced of 4 and 1 energy level is 12.75 eV 
So higher energy level is 4 to ground and Excited state is

Solve any question of Dual Nature of Radiation And Matter with:-

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