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JEE Main 2023 (10 Apr, Shift 1) · Bohr Model: Orbits, Speed & Angular Momentum

Bohr Model: Orbits, Speed & Angular Momentum question from JEE Main 2023 (10 Apr, Shift 1)

Q59JEE Main 2023 · 10 APR · SHIFT 1Easy

Bohr Model: Orbits, Speed & Angular Momentum

The angular momentum for the electron in Bohr's orbit is L. If the electron is assumed to revolve in second orbit of hydrogen atom, then the change in angular momentum will be

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Answer: (a)

Taking $L$ for the first orbit: $L = \dfrac{h}{2\pi}$ .
Second orbit: $L_2 = \dfrac{2h}{2\pi} = 2L$ .
Change $= 2L - L = L$ . So the answer is (a).

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