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Q.

The orbital angular momentum of an electron is 3hπ. Which of the following may be the permissible value of angular momentum of this electron revolving in unknown Bohr orbit? 

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a

3.h2π

b

h2π

c

2.hπ

d

hπ

answer is D.

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Detailed Solution

ll+1h2π=3hπ ∴ l=3 

So value of n>3 

∴ Angular momentum =nh2πnεI 

So angular momentum>3h2π;          So 2.hπ 

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