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The electron in a hydrogen atom makes a transition from n = n1 to n = n2 state. The time period of the electron in the initial state is eight times that in the final state. The possible values of n1 and n2 are

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a

n1 = 4, n2 = 2

b

n1 = 8, n2 = 2

c

n1 = 5, n2 = 2

d

n1 = 6, n2 = 2

answer is A.

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Detailed Solution

T∝n3 ; ∴T1T2=n1n23 ∴8TT=n1n23 ; ∴n1n2=21(or) n1n2=42 i.e., n1=4, n2=2

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