Physics-Escape Velocity
NEET Physics Escape Velocity MCQ Question
Type: MCQ-numerical-Medium-Class 11
What is the minimum speed required for an object to escape the Earth's gravitational field when launched from its surface?
A
11.2 km/s
B
9.8 km/s
C
7.9 km/s
D
5.6 km/s
Correct Answer
Option A
Detailed Explanation
From the NCERT context, the minimum escape speed from the surface of the Earth is calculated using the formula (V_i)_min = (2gR_E)^0.5, which results in approximately 11.2 km/s.
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