Step 1: The escape velocity \( v_e \) is the minimum velocity required for a body to escape the gravitational field of a planet. It is given by the formula: \[ v_e = \sqrt{\frac{2GM}{R}}, \] where:
- \( G \) is the gravitational constant,
- \( M \) is the mass of the planet,
- \( R \) is the radius of the planet.
Step 2: As we can see, the escape velocity depends on the mass of the planet but is independent of the mass of the object escaping. The mass \( m \) of the object does not affect the escape velocity.
Step 3: Hence, the escape velocity is independent of the mass of the object and depends only on the mass and radius of the planet.
Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): In an insulated container, a gas is adiabatically shrunk to half of its initial volume. The temperature of the gas decreases.
Reason (R): Free expansion of an ideal gas is an irreversible and an adiabatic process.
In the light of the above statements, choose the correct answer from the options given below: