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Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.
Assertion : Density of all the nuclei is the same.
Reason : Radius of nucleus is directly proportional to the cube root of mass number.
- a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
- b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
- c)If the Assertion is correct but Reason is incorrect.
- d)If both the Assertion and Reason are incorrect.
Correct answer is option 'A'. Can you explain this answer?
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Directions: These questions consist of two statements, each printed a...
Experimentally, it is found that the average radius of a nucleus is given by R = R0A1/3 where R0 = 1.1 × 10−15 m = 1.1 fm
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and A = mass number
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Directions: These questions consist of two statements, each printed a...
Understanding the Assertion and Reason
The assertion and reason statements in question pertain to nuclear physics, specifically focusing on the properties of atomic nuclei.
Assertion: Density of all nuclei is the same
- This statement is generally accepted as true in nuclear physics.
- Nuclei of various elements exhibit similar densities, approximately 2.3 x 10^17 kg/m^3.
- This uniformity arises because the forces that hold the nucleons (protons and neutrons) together within the nucleus are strong and short-ranged.
Reason: Radius of nucleus is directly proportional to the cube root of mass number
- This statement is also correct. The empirical formula for the radius of a nucleus is given as R = R0 * A^(1/3), where R0 is a constant and A is the mass number.
- This relation indicates that as the mass number increases, the radius of the nucleus increases but at a slower rate (the cube root).
Correct Explanation: Option A
- Both the assertion and reason are correct.
- The reason explains why the density remains approximately constant across different nuclei: as nuclei grow larger (in mass), their volume increases, but the increase in radius does not lead to a corresponding increase in density.
- Thus, the relationship that the radius is proportional to the cube root of mass number contributes to the understanding of why nuclear densities remain consistent.
In conclusion, the correct answer is option A as both statements are correct, and the reason accurately explains the assertion.
The assertion and reason statements in question pertain to nuclear physics, specifically focusing on the properties of atomic nuclei.
Assertion: Density of all nuclei is the same
- This statement is generally accepted as true in nuclear physics.
- Nuclei of various elements exhibit similar densities, approximately 2.3 x 10^17 kg/m^3.
- This uniformity arises because the forces that hold the nucleons (protons and neutrons) together within the nucleus are strong and short-ranged.
Reason: Radius of nucleus is directly proportional to the cube root of mass number
- This statement is also correct. The empirical formula for the radius of a nucleus is given as R = R0 * A^(1/3), where R0 is a constant and A is the mass number.
- This relation indicates that as the mass number increases, the radius of the nucleus increases but at a slower rate (the cube root).
Correct Explanation: Option A
- Both the assertion and reason are correct.
- The reason explains why the density remains approximately constant across different nuclei: as nuclei grow larger (in mass), their volume increases, but the increase in radius does not lead to a corresponding increase in density.
- Thus, the relationship that the radius is proportional to the cube root of mass number contributes to the understanding of why nuclear densities remain consistent.
In conclusion, the correct answer is option A as both statements are correct, and the reason accurately explains the assertion.
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Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Density of all the nuclei is the same.Reason : Radius of nucleus is directly proportional to the cube root of mass number.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'A'. Can you explain this answer?
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Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Density of all the nuclei is the same.Reason : Radius of nucleus is directly proportional to the cube root of mass number.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Density of all the nuclei is the same.Reason : Radius of nucleus is directly proportional to the cube root of mass number.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Density of all the nuclei is the same.Reason : Radius of nucleus is directly proportional to the cube root of mass number.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'A'. Can you explain this answer?.
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Density of all the nuclei is the same.Reason : Radius of nucleus is directly proportional to the cube root of mass number.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Density of all the nuclei is the same.Reason : Radius of nucleus is directly proportional to the cube root of mass number.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Density of all the nuclei is the same.Reason : Radius of nucleus is directly proportional to the cube root of mass number.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'A'. Can you explain this answer?.
Solutions for Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Density of all the nuclei is the same.Reason : Radius of nucleus is directly proportional to the cube root of mass number.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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