AIPMT PRELIMS2000Physics-Gravitation
AIPMT PRELIMS 2000 Physics Escape Velocity MCQ Question
Type: MCQ-numerical-Medium-Class 11
For a planet having mass equal to mass of the earth but radius is one fourth of radius of the earth. Then escape velocity for this planet will be:
A
11.2 km/s
B
22.4 km/s
C
5.6 km/s
D
44.8 km/s
Correct Answer
Option B
Detailed Explanation
Escape velocity is given by v = √(2GM/R). If the radius is reduced to one fourth, the escape velocity becomes twice that of Earth, i.e., 22.4 km/s.
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