Assertion : Angular momentum of an electron i | vedclass

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(B) The assertion states that the angular momentum of an electron in an orbit is given by $mvr = \frac{nh}{2\pi}$,which is a fundamental postulate of

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If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

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(B) The assertion states that the angular momentum of an electron in an orbit is given by $mvr = \frac{nh}{2\pi}$,which is a fundamental postulate of the Bohr model of the atom. This statement is correct.The reason states that the principal quantum number,$n$,can have any integral value $(n = 1, 2, 3, \dots)$. This is also a correct statement regarding the definition of the principal quantum number.However,the fact that $n$ can take any integral value is not the reason why the angular momentum is quantized as $\frac{nh}{2\pi}$. The quantization of angular momentum is a separate postulate derived from the wave nature of the electron. Therefore,the reason is not the correct explanation of the assertion.

Assertion : Angular momentum of an electron in any orbit is given by angular momentum $= \frac{nh}{2\pi}$,where $n$ is the principal quantum number.
Reason : The principal quantum number,$n$,can have any integral value.

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Assertion : Angular momentum of an electron in any orbit is given by angular momentum $= \frac{nh}{2\pi}$,where $n$ is the principal quantum number.Reason : The principal quantum number,$n$,can have any integral value.