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Q.

Which one of the following statements is not correct?

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a

Rydberg constant and wave number have same units

b

Lyman series of hydrogen spectrum occurs in the ultraviolet region

c

The angular momentum of the electron in the ground state of hydrogen atom is equal to h/2 π

d

The radius of the first Bohr orbit of hydrogen atom is 2.116×10–8cm

answer is D.

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Detailed Solution

rn = r0n2= (0.53)12Aº= 0.53 × 10-8cmThus 4th option is wrong
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