Assertion(A): \(h/\pi\) is the angular momentum of the electron in the second orbit of He+.
Reason(R): Angular momentum of an electron in a subshell is given by \(\sqrt{l(l+1)} \times {h\over 2\pi}\) .

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.
 
Subtopic:  Bohr's Theory |
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Assertion: Angular momentum of the electron in the orbit which has four subshell is \(2h\over\pi\).
Reason: Angular momentum of the electron is quantized.
 
1. Both statements are true and reason is the correct explanation of assertion.
2. Both statements are true but reason is not the correct explanation of assertion.
3. Assertion is true and reason is false.
4. Assertion is false and reason is true.
 
Subtopic:  Bohr's Theory |
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Assertion: The radius of the second orbit of He+ is equal to that of the first orbit of hydrogen.

Reason: The radius of an orbit in hydrogen-like species is directly proportional to n and inversely proportional to Z.

1. Both the assertion and the reason are true and the reason is the correct explanation of the assertion.

2. Both the assertion and the reason are true but the reason is not the correct explanation of the assertion.

3. The assertion is true but the reason is false.

4. Both assertion and reason are false statements.

Subtopic:  Bohr's Theory |
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Assertion: The angular momentum of an electron in an atom is quantized.

Reason: In an atom only those orbits are permitted in which angular momentum of the electron is a natural number multiple of h2π.

1. Both the assertion and the reason are true and the reason is the correct explanation of the assertion. 

2. Both the assertion and the reason are true but the reason is not the correct explanation of the assertion.

3. The assertion is true but the reason is false.

4. The assertion is false but the reason is true.

Subtopic:  Bohr's Theory |
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Assertion: Bohr’s orbits are also called stationary states.

Reason:  Electrons are stationary in an orbit.

1. Both the assertion and the reason are true and the reason is the correct explanation of the assertion.

2. Both the assertion and the reason are true but the reason is not the correct explanation of the assertion.

3. The assertion is true but the reason is false.

4. The assertion is false but the reason is true.

Subtopic:  Bohr's Theory |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology