Question Analysis: Assertion (A) and Reason (R) type question.

Step 1 (Governing Principles): [0.25 Mark]

• Assertion (A): Nuclear forces are short-range, strong attractive forces that act between nucleons (protons and neutrons). However, they become repulsive if the distance between nucleons is less than $r \approx 0.5 \text{ fm}$.
• Reason (R): The nuclear force is the strongest fundamental force in nature, significantly stronger than the electromagnetic force and the weak nuclear force.

Step 2 (Logical Evaluation): [0.5 Mark]

• Evaluation of (A): The statement "Nuclear forces are always attractive" is False because they exhibit a repulsive core at very short distances ($r < 0.5 \text{ fm}$).
• Evaluation of (R): The statement "The nuclear force... is a weak force" is False. It is the strongest force, responsible for binding the nucleus together against the electrostatic repulsion of protons.

Step 3 (Final Concluded Answer): [0.25 Mark]

Correct Option: (d) Both Assertion (A) and Reason (R) are false statements.

💡 EL10 Concept Insight: Think of nuclear forces like a super-strong spring: they pull particles together tightly, but if you try to push them too close, they push back hard to prevent overlapping! Also, calling the nuclear force "weak" is like calling a hurricane a "breeze"—it's actually the most powerful glue in the universe.