According to Bohr’s theory, the angular momentum of an electron in 5th orbit is

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10hπ

2.5hπ

25hπ

1.0hπ

answer is B.

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Detailed Solution

According to Bohr’s Theory angular momentum of an electron i in nth orbital is given by mvr=nh2π when n=5Angular momentum of electron =5h2π=2.5hπ

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