Gravitational Potential Energy - NEET Physics Questions

Question 21: easy

Assertion (A): Escape velocity from surface of a planet is \(V_e\). If a tunnel is made inside the surface, the escape velocity from a point inside the tunnel must be greater than \(V_e\).

Reason (R): Gravitational force is a conservative central force.

1. Both (A) & (R) are true and the (R) is the correct explanation of the (A)

2. Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

3. (A) is true but (R) is false

4. Both (A) and (R) are false

View Answer

Assertion (A) is true; the gravitational potential energy is more negative (deeper well) inside a uniform planet, requiring greater escape velocity.

Reason (R) is true and foundational: gravity being a conservative central force allows the definition and calculation of potential energy and escape velocity.

💬 Discuss this Question