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  • 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:  Nucleus |
 66%
From NCERT
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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:  Nucleus |
 81%
From NCERT
To view explanation, please take trial in the course.
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Hints
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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:  Nucleus |
 64%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
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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:  Nucleus |
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
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:  Nucleus |
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
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:  Nucleus |
 58%
From NCERT
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
Hints
To view explanation, please take trial in the course.
NEET 2026 - Target Batch - Vital
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