Assertion :Angular momentum of $1 s, 2 s, 3 s$ , etc., all have spherical shape. Reason: $1 s, 2 s, 3 s$ , etc., all have spherical shape.

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
The angular momentum of an electron is calculated by using the azimuthal quantum number l.
When $l = 0$ , the shape of the subshell is spherical. Hence, the angular momentum has also spherical shape.
1s, 2s, 3s, etc., all have spherical shape.
Hence, the angular momentum of 1s, 2s, 3s, etc., all have spherical shape.

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

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Assertion :Angular momentum of 1s,2s,3s, etc., all have spherical shape. Reason: 1s,2s,3s, etc., all have spherical shape.

Assertion :Angular momentum of $1 s, 2 s, 3 s$ , etc., all have spherical shape. Reason: $1 s, 2 s, 3 s$ , etc., all have spherical shape.