Question

(C) 8
(A) 2
(B) 4
(D)
In a sample of H-atom, electron makes transition from lower state n, to higher state n, by absorbing
photons emitted by another sample of L ions from 12 - 3 transition. The electron in H-atom then makes
back transition from state n, to ground state by emitting all posible photons. Then, the number of lines in
infrared region in emission spectrum of H-atom sample is:
(A) 3
(B)2
(C) 1​

Answer 1

Answer:

B..............................2