Physics-Escape Velocity
NEET Physics Escape Velocity MCQ Question
Type: MCQ-diagram based-Medium-Class 11
Consider a diagram showing a projectile being launched vertically from the surface of the Earth. The minimum speed required for this projectile to escape Earth's gravitational influence is depicted. Which of the following expressions correctly represents this escape velocity?
A
(2gR_E)^0.5
B
(gR_E)^0.5
C
(GmM/R_E)^0.5
D
(GmM/2R_E)^0.5
Correct Answer
Option A
Detailed Explanation
The escape velocity for an object projected from the surface of the Earth is derived using the formula V = (2gR_E)^0.5, as shown in Eq. (7.32) of the NCERT context. It represents the minimum speed needed for an object to overcome Earth's gravitational pull.
Found an issue with this question?