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The figure shows an energy level diagram...

The figure shows an energy level diagram for the hydrogen atom. Several transitions are marked as `I, II, III` `",______,"` the diagram is only indicative and not to scale.
.
Which transition involves the longest wavelength line in the visible portion of the hydrogen spectrum

A

II

B

III

C

VI

D

IV

Text Solution

Verified by Experts

The correct Answer is:
D
For longest wavelength, energy difference should be minimum. So in visible portion of hydrogen atom, minimum energy is in transition VI & IV.
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