CUET · PHYSICS · PYQ PAPER 2023
Which of the following statements are correct ?
(A) For a pair of nucleons, the force is attractive for distances larger than 0.8 fm.
(B) The density of a nucleus is dependent of A.
(C) Nuclides with same neutron number but different atomic number are called isotones.
(D) \( \beta^+ \) decay process is the conversion of neutron to proton.
(E) Plutonium undergoes fission with slow neutrons.
Choose the correct answer from the options given below :
- A (A), (B) and (D) Only
- B (B), (C) and (D) Only
- C (A), (C) and (E) Only
- D (A), (D) and (E) Only
Answer & Solution
Correct Answer
(C) (A), (C) and (E) Only
Step-by-step Solution
Detailed explanation
(A) is Correct: The nuclear force is repulsive at very short distances (less than 0.8 fm ) but becomes attractive beyond that point to keep the nucleus together. (C) is Correct: By definition, isotones are nuclides that share the same number of neutrons ( \(N\) ) but have…
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