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Q. No.Given below are two statements:
Assertion (A):
In the process of nuclear fission, the fragments emit two or three neutrons as soon as they are formed and subsequently emit particles.
Reason (R):
As the fragments contain an excess of neutrons over protons, emission of neutrons and particles bring their neutron/proton ratio to stable values.
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 but (R) is false.
4.
Both (A) and (R) are false.
Subtopic: Â Nuclear Energy |
 83%
From NCERT
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Given below are two statements:
| Assertion (A): | If a heavy nucleus is split into two medium-sized parts, each of the new nuclei will have more binding energy per nucleon than the original nucleus. |
| Reason (R): | Joining two light nuclei together to give a single nucleus of medium size means more binding energy per nucleon in the new nucleus. |
| 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 but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Â Nuclear Binding Energy |
 55%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Assertion (A): | Density of all the nuclei is same. |
| Reason (R): | Radius of nucleus is directly proportional to the cube root of mass number. |
| 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 but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Â Nucleus |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Assertion (A): | Neutrons penetrate matter more readily as compared to protons. |
| Reason (R): | Neutrons are slightly more massive than protons. |
| 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 but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Â Nucleus |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Assertion (A): | Mass of a moving photon varies inversely to the wavelength. |
| Reason (R): | Energy of the particle = Mass \(\times\)(speed of light)2 |
| 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 but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Â Mass-Energy Equivalent |
 57%
From NCERT
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Given below are two statements:
| Assertion (A): | Energy is released in nuclear fission. |
| Reason (R): | Total binding energy of the fission fragments is larger than the total binding energy of the parent nucleus. |
| 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 but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Â Nuclear Binding Energy |
 78%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Assertion (A): | Heavy water is preferred over ordinary water as a moderator in reactors. |
| Reason (R): | Heavy water, used for slowing down the neutrons, has a lesser absorption probability of neutrons than ordinary water. |
| 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 but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Â Nuclear Energy |
 83%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Assertion (A): | It is not possible to use 35Cl as fuel for fusion energy. |
| Reason (R): | The binding energy of 35Cl is too small. |
| 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 but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Â Nuclear Binding Energy |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Assertion (A): | The binding energy per nucleon, for nuclei with atomic mass number A > 100 decreases with A. |
| Reason (R): | The nuclear forces are weak for heavier nuclei. |
| 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 but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Â Nuclear Binding Energy |
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
Given below are two statements:
| Assertion (A): | The scattering of \(\alpha\)-particles depend on the atomic number of both the incident particle and the target scattered. |
| Reason (R): | The atomic number represents the Colombian force of repulsion. |
| 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 but (R) is false. |
| 4. | Both (A) and (R) are false. |
Subtopic: Â Nucleus |
 53%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
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NEET 2023 - Target Batch - Aryan Raj Singh
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