STANDARD Physics Orbital Velocity and Escape Velocity MCQ Question
A satellite is revolving in a circular orbit at a height 'h' from the Earth's surface (radius of Earth R; h << R). The minimum increase in its orbital velocity required, so that the satellite could escape from the Earth's gravitational field, is close to (Neglect the effect of atmosphere.)
√2gR
√gR
√gR / 2
√gR(√2 − 1)
Correct Answer
Detailed Explanation
The increase in velocity required is given by √gR(√2 − 1), which accounts for the energy needed to reach escape velocity.
Found an issue with this question?
Related Questions
More from Gravitation
More from
Match Column-I with Column-II. Column-I Column-II (a) Gravitational force between two masses (i) Proportional to the inverse square of dista...
Match Column-I with Column-II. Column-I Column-II (a) Gravitational constant (G) (i) Unity of forces acting on m (b) Principle of superpos...
What happens to the acceleration due to gravity as a point mass moves below the surface of the Earth?