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PhysicsModern PhysicsAtomic structureMedium2 minQB
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A monochromatic radiation is absorbed by hydrogen atoms already in some excited state and consecutively emit 10 different wavelengths. In emitted wavelengths only two wavelengths are greater than wavelength of absorbed radiation. Match information in List-I to List-II.
List - I | List - II |
|---|---|
(P) Atoms gets excited to | (1) 4 |
(Q) Initial state of atoms before absorption of the radiation is | (2) 5 |
(R) Number of transition belonging to Lyman Series. | (3) 3 |
(S) Number of transitions belonging to Balmer Series. | (4) 1 |
Options:
Answer:
D
Solution:
10 wavelengths:
So the atom is excited to
Only 2 emitted wavelengths exceed the absorbed one: and
So the initial state is
Lyman lines (to ): from 5, 4, 3, 2 = 4 lines
Balmer lines (to ): from 5, 4, 3 = 3 lines
P→2, Q→3, R→1, S→3
Option (D)
Stream:JEESubject:PhysicsTopic:Modern PhysicsSubtopic:Atomic structure
⏱ 2mℹ️ Source: QB
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