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What is the number of revolutions that a...

What is the number of revolutions that an electron will make per second in the `4^(th)` Bohr orbit of `Li^(+2)` ?

A

`3.48 xx 10^(15) rps`

B

`4.55 xx 10^(13) rps`

C

`7.12 xx 10^(13) rps`

D

`9.22 xx 10^(14)` rps

Text Solution

Verified by Experts

The correct Answer is:
D
Revolution per second `=(V_(n))/(2pi r_(n)) = 6.66 xx 10^(15) (Z^(2))/(n^(3)) = 6.66 xx 10^(15) (3^(2))/(4^(3)) = 9.22 xx 10^(14)` rps
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