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Question

Which of the following is NOT the possible angular orbital momentum of an electron?

h is the Planck constant.

A
3h2π
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B
5h2π
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C
7h2π
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D
8.5h2π
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Solution

The correct option is D 8.5h2π
From postulates of Bohr’s Model, an electron can move only in those orbits for which its angular orbital momentum is an integral multiple of h2π.

mvr=nh2π

Also, we know that, 8.5 is not an integer.

Hence, option (D) is the correct answer.

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