The frequency of incident photon so that the atom makes a transition f – McqOptions

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1.	The frequency of incident photon so that the atom makes a transition from E₁ to E₂ should be __________
A.	E<sub>2</sub> E<sub>1</sub>
B.	E<sub>2</sub> E<sub>1</sub>/c
C.	E<sub>2</sub> E<sub>1</sub>/h
D.	E<sub>2</sub> E<sub>1</sub>/
Answer» D. E<sub>2</sub> E<sub>1</sub>/

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