According to Bohr's theory the moment of

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Target Exam

CUET

Subject

Physics

Chapter

Atoms

Question:

According to Bohr's theory the moment of momentum of an electron revolving in second orbit of hydrogen atom will be

Options:

2πh

πh

$\frac{h}{π}$

$\frac{2h}{π}$

Correct Answer:

$\frac{h}{π}$

Explanation:

Angular momentum $L=n\left(\frac{h}{2 \pi}\right)$

For this case n = 2, hence $L=2 \times \frac{h}{2 \pi}=\frac{h}{\pi}$