Sharpen your Physics skills with chapter-wise NEET practice questions. Designed for NEET aspirants, these questions cover all Physics topics.
If the escape velocity from a planet's surface is 'v', what will be the escape velocity from a height equal to the planet's radius above its surface?
If the radius of Earth were to shrink to half its present value, with its mass remaining the same, what would happen to the escape velocity?
It increases by a factor of √2
It decreases by a factor of 2
It increases by a factor of 2
It remains unchanged
The escape velocity from a planet's surface is . What would be the escape velocity of a satellite orbiting the planet at a height equal to its radius?
Which of the following factors does not affect the escape velocity of a planet?
Mass of the planet
Radius of the planet
Mass of the object escaping
Gravitational constant
Escape velocity is the minimum velocity required for an object to:
Orbit a planet.
Escape the gravitational pull of a planet.
Fall back to the planet.
Enter the atmosphere of a planet.
If a planet has twice the mass and twice the radius of Earth, its escape velocity will be:
Twice Earth's.
Half of Earth's.
The same as Earth's.
Four times Earth's.
The escape velocity of a projectile from the Earth is approximately:
9.8 m/s
11.2 km/s
1.6 km/s
22.4 km/s
A planet has a radius one-third that of Earth and its mass is one-sixth that of Earth. What is the escape velocity from this planet, given that the escape velocity from Earth is 11.2 km/s?
5.6 km/s
7.92 km/s
11.2 km/s
15.84 km/s
If the radius of Earth were doubled, keeping its mass constant, the escape velocity from Earth would:
Remain unchanged
Increase by a factor of 2
Decrease by a factor of √2
Increase by a factor of √2
