Physics questions
20027 published questions with worked solutions.
- Imagine a light planet revolving around a very massive star in a circular orbit of radius r with period T. If gravitational force...
- Statement 1: The artificial satellite does not have any fuel but even then it remains orbiting around the earth Statement 2: The...
- Statement 1: When an object is weighed with a physical balance, then its mass will be same both at the pole and at the equator...
- The acceleration due to gravity at a height 1/20th of the radius of the earth above the earth surface is 9 ms^ -2 . Its value at...
- A diametrical tunnel is dug across the Earth. A ball is dropped into the tunnel from one side. The velocity of the ball, when it...
- A satellite is placed in a circular orbit about Earth with radius equal to half the radius of the moon's orbit. Period of...
- The moon's radius is 1/4 that of the earth and its mass is 1/80 times that of the earth. If g represents the acceleration due to...
- Two particles of equal mass go around a circle of radius R under the action of their mutual gravitational force of attraction....
- A body weighs 700 gm-wt on the surface of the earth. How much will it weigh on the surface of a planet whose mass is 17 and...
- Two satellites A and B go round a planet in circular orbits having radii 4R and R, respectively. If the speed of satellite A is...
- A satellite of mass 200 kg is orbiting with a critical velocity of 20 m/s. Another satellite of mass 100 kg orbiting in same...
- A satellite is moving around the earth with speed v in a circular orbit of radius r. If the orbit radius is decreased by 1%, its...
- If T is the time period of revolution of a satellite, then K.E. is proportional to
- Given radius of Earth 'R' and length of a day 'T' the height of a geostationary satellite is [G-Gravitational Constant, M-Mass of...
- The period of a satellite in a circular orbit around a planet is independent of [NCERT 1974, AIEEE 2004]
- The earth (mass =6 10^ 24 kg) revolves round the sun with an angular velocity of 2 10^ -7 rad/s in a circular orbit of radius 1.5...
- If the distance between the earth and sun becomes 1/4th, then its period of revolution around the sun will become
- According to Kepler, the period of revolution of a planet (T) and its mean distance from the sun (r) are related by the equation...
- The earth revolves round the sun in one year. If the distance between them becomes double, the new period of revolution will be...
- A geostationary satellite orbits around the earth in a circular orbit of radius 36000 km. Then, the time period of a satellite...