Value of escape velocity for the surface of the earth is 11 km/sec. Its value for surface of the moon is:
Correct answer: C. 2.4 km/sec
- A. 11 km/sec
- B. 10.4 km/sec
- C. 2.4 km/sec
- D. 4.3 km/sec
Explanation
The correct answer is Option C: 2.4 km/sec. The escape velocity for the Moon is approximately 2.374 km/sec. This is significantly lower than Earth's escape velocity due to the Moon's smaller mass and gravitational pull. Options A and B are incorrect because they refer to the escape velocities of Earth and Venus, respectively. Option D is also incorrect as it does not correspond to any known celestial body's escape velocity.
This question appeared on the UHS MDCAT 2010 paper, which you can sit online with every answer explained.
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