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De Broglie's Hypothesis

The orbital a...

Question

The orbital angular momentum for an electron revolving in an orbit is given by $\sqrt{l (l + 1)} \frac{h}{2 π}$ . Determine this momentum for an s - electron.

A

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B

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C

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D

3

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Solution

The correct option is A 0
Orbital angular momentum $= \sqrt{l (l + 1)} \frac{h}{2 π}$
For s electron, $l = 0$ .
Therefore, orbital angular momentum $= 0$

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