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Q.

In a hydrogen atom, the transition takes place from n = 3 to n = 2. If Rydberg's constant is 1.09×107m−1, the wavelength of the line emitted is

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a

6606Å

b

4861 Å

c

4340 Å

d

4101 Å

answer is A.

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Detailed Solution

1λ=1.09×107122−132 ⇒ λ=6.606×10−7m⇒6606Å
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In a hydrogen atom, the transition takes place from n = 3 to n = 2. If Rydberg's constant is 1.09×107m−1, the wavelength of the line emitted is