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If an electron jumps from energy level n = 4 to n = 1 and release a single photon. Find out the wave length of emitted photon.

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If an electron jumps from energy level n = 4 to n = 1 and release a single photon. Find out the wave length of emitted photon. (Consider Hydrogen atom)

(1) 970.3Å
(2) 972.3Å
(3) 972.2Å
(4) 872.3Å

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Correct option is (2) 972.3Å

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