X different wavelengths may be|MODERN PHYSICS|JEE-MAIN2021

JEE-MAIN 2021

27-08-2021 S2

Question

X different wavelengths may be observed in the spectrum from a hydrogen sample if the atoms are exited to states with principal quantum number n = 6 ? The value of X is _______

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Solution

No. of different wavelengths = n(n − 1) / 2 = 6 × (6 − 1) / 2 = 6 × 5 / 2 = 15

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JEE Main

Physics

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