Assertion :Energy of electron in Bohr's orbit is always negative. Reason: Energy of electron is sum of potential energy and kinetic energy.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Energy of electron in Bohr's orbit is equals to $E = - 13.6 \frac{z^{2}}{n^{2}}$
So, E is always negative.

This energy(E) of an electron is the sum of potential energy and kinetic energy.

Thus both the reason and assertion are correct but the reason is not the correct explanation of assertion.

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