- 1(current)
Q. No.Given below are two statements:
| Assertion (A): | The density of the nucleus is much higher than that of ordinary matter. |
| Reason (R): | Most of the mass of the atom is concentrated in the nucleus while the size of this nucleus is almost \(10^5\) times smaller. |
| 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 |
 66%
Level 2: 60%+
Hints
Given below are two statements:
| Assertion (A): | All nuclei are not of the same size. |
| Reason (R): | The size of the nucleus depends on atomic mass. |
| 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 |
 81%
Level 1: 80%+
Hints
Given below are two statements:
| Assertion (A): | The mass of a nucleus can be either less than or more than the sum of the masses of nucleons present in it. |
| Reason (R): | The density of nuclear matter is dependent on the size of the 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 Nucleus |
 65%
Level 2: 60%+
Hints
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Given below are two statements:
| Assertion (A): | The density of all the nuclei is the same. |
| Reason (R): | The radius of the nucleus is directly proportional to the cube root of the 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 |
Level 3: 35%-60%
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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 |
Level 3: 35%-60%
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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 |
 57%
Level 3: 35%-60%
Hints
- 1(current)
Q. No.
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