Physics questions
20027 published questions with worked solutions.
- A body is raised to a height 'nR' from the surface of the earth of radius R. The ratio of acceleration due to gravity on the...
- An asteroid of mass m is approaching earth, initially at a distance of 10R_e with speed v_i. It hits the earth with a speed v_f...
- Statement 1: An astronaut in an orbiting space station above the Earth experiences weightlessness Statement 2: An object moving...
- Distance between centres of two stars is 10a. The masses of these stars are M and 16M and their radii are a and 2a respectively....
- A comet is moving around the earth in highly elliptical orbit. Identify the incorrect statement
- A particle is dropped on Earth from height R (radius of earth) and it bounces back to height h. If the coefficient of restitution...
- Two masses m_1 and m_2 (m_1 < m_2) are released from rest from a finite distance. They start under their mutual gravitational...
- What is the minimum energy required to launch a satellite of mass m from the surface of a planet of mass M and radius R in a...
- A uniform spherical planet (Radius R) has acceleration due to gravity at its surface as g. Points P and Q located inside and...
- A satellite of mass M is orbiting the earth in a circular orbit of radius r. It starts losing energy due to small air resistance...
- A satellite of mass 'm' is revolving in circular orbit of radius 'r' round the earth. Its angular momentum w.r.t. the centre of...
- If a satellite is travelling in the same direction as the rotation of earth i.e., west to east, what is the interval between two...
- Suppose gravitational force varies inversely as the n^ th power of distance. Time period of earth (radius R) will be proportional...
- Suppose the universal gravitational constant starts to decrease, then Which of the below statements is wrong?
- Mass of the Earth is 81 times mass of the Moon and distance between Earth and Moon is 60 times the radius of Earth. If R is the...
- Some aliens living beneath the surface of the earth want to send a parcel to their friends just outside earth's pull. What should...
- A triple star consists of two stars, each of mass m in the same circular orbit about a central star of mass M = 10 10^ 30 kg. The...
- Infinite number of bodies, each of mass 2 kg are situated on x-axis at distance 1 m, 2 m, 4 m, 8 m, ... respectively, from the...
- Let be the angular velocity of earth's rotation about the axis. Assume the acceleration due to gravity on the earth's surface has...
- For a particle projected in a transverse direction from a height h above earth's surface, find the minimum initial velocity so...