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MHT CET 2023 Chemistry question

ChemistryStructure of AtomMHT CET 2023

What is the wave number of photon emitted during transition from orbit, n = 4 to n = 2 in hydrogen atom [R = 109677 cm] ?

Answer: (A)

Solution

Using the Rydberg formula for hydrogen, with , . So cm.

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Question ID VK-094572