Among the following transitions of an electron of H-atom
$T_{1}$ : 5d → 4p
$T_{2}$ : 5f → 4d
$T_{3}$ : 4d → 3p
$T_{4}$ : 3d → 2p
Choose the correct option of order of wavelength of emitted photon during these transitions.

Question

Among the following transitions of an electron of H-atom

$T_{1}$ : 5d → 4p

$T_{2}$ : 5f → 4d

$T_{3}$ : 4d → 3p

$T_{4}$ : 3d → 2p

Choose the correct option of order of wavelength of emitted photon during these transitions.

TestHub · Accepted Answer

In hydrogen energy depends only on n. T 1 and T 2 are both 5 → 4 (equal), T 3 is 4 → 3, T 4 is 3 → 2. The energy gaps increase 5→4 < 4→3 < 3→2, so wavelength: T 1 = T 2 > T 3 > T 4 . (A) false (equal). (B) false. (C) false. (D) T 1 > T 4 : true. Answer: (D).

Chemistry - Atomic Structure Question with Solution | TestHub

Options:

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