JEE Main · PhysicsMedium
If the mass of the Earth $M$ becomes $2M$ and its radius $R$ becomes $R/2$, what is the new acceleration due to gravity $g'$ in terms of the original $g$?
- A.$2g$
- B.$4g$
- C.$8g$
- D.$g$
Show correct answer & step-by-step solution
Correct answer: C — $8g$
Solution
Using the formula , the new acceleration is .
Attempt this question & track your score
Sign up free to answer, get instant scoring, and let SolveGini track which Physics topics you need to revise.
Attempt & Track Free →More Gravitation practice questions
- What is the value of the acceleration due to gravity at the center of the Earth?
- If the mass of a planet is doubled and its radius is also doubled, what happens to the acceleration due to gravity on it
- Which of the following is the correct unit for the universal gravitational constant G?
- The orbital velocity of a satellite revolving near the surface of the Earth depends on which of the following?
- What is the escape velocity from the surface of the Earth?
- A satellite is orbiting the Earth at a height equal to the radius of the Earth. What is the ratio of its orbital speed t
- A particle is projected vertically upwards from the surface of the Earth with a velocity equal to half the escape veloci
- Two spheres of mass M and 4M are separated by a distance d. At what distance from the sphere of mass M is the gravitatio
- A planet revolves around the Sun in an elliptical orbit. If the ratio of the maximum and minimum distances from the Sun
- A particle is projected vertically upwards from the surface of the earth with a velocity equal to half of the escape vel
- A satellite is orbiting the earth in a circular orbit of radius r. A small impulse is given to the satellite such that i
- A particle is dropped from a height h above the surface of the earth. If the time taken to reach the surface is t, what