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JEE PHYSICS MCQ: ATOMS

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Application +4 | -1
Suppose, in certain conditions only those transitions are allowed to hydrogen atoms in which the principal quantum number nn changes by 2.

(a) Find the smallest wavelength emitted by hydrogen.

(b) List the wavelengths emitted by hydrogen in the visible range (380 nm(380 \mathrm{~nm} to 780 nm780 \mathrm{~nm}).
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Correct option: A
(a) 103 nm;103 \mathrm{~nm}; (b) 487 nm487 \mathrm{~nm}
Option A ((a) 103 nm;103 \mathrm{~nm}; (b) 487 nm487 \mathrm{~nm}) is correct because the smallest wavelength and the wavelength in the visible range are calculated correctly based on the given transition rule.

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