Physics questions
20027 published questions with worked solutions.
- The mass of the moon is (1/81) th of earth's mass and its radius is (1/4) th that of the earth. If the escape velocity from the...
- The escape velocity of a body from the earth is v_e. If the radius of earth contracts to (1/4) th of its value, keeping the mass...
- What is the escape velocity for a body on the surface of a planet on which the acceleration due to gravity is (3.1)^2 m ,s^ -2...
- Two spherical planets P and Q have the same uniform density , masses M_P and M_Q and surface areas A and 4A, respectively. A...
- A solid sphere of mass M and radius R has a spherical cavity of radius R/2 such that the centre of cavity is at a distance R/2...
- Three identical bodies of mass M are located at the vertices of an equilateral triangle of side L. They revolve under the effect...
- If the radius of the earth was to shrink by 2%, its mass remaining same, the acceleration due to gravity on the earth's surface...
- What is the height when the weight of body will be the same as at the same depth from the surface of the earth, where R is radius...
- 320 km above the surface of earth, the value of acceleration due to gravity is nearly 90% of its value on the surface of the...
- The acceleration due to gravity at a height (1/20)th of the radius of the earth above the earth's surface is 9 m ,s^ -2 . Its...
- The ratio of radii of earth to another planet is 2/3 and the ratio of their mean densities is 4/5. If an astronaut can jump to a...
- The height at which the acceleration due to gravity becomes g/9 (where, g is the acceleration due to gravity on the surface of...
- The effect of rotation of the earth on the value of acceleration due to gravity g is
- The magnitudes of the gravitational force at distances r_1 and r_2 from the centre of a uniform sphere of radius R and mass M are...
- A body of super condensed material with mass twice the mass of earth but size very small compared to the size of earth starts...
- Four equal masses (each of mass M) are placed at the corners of a square of side a. The escape velocity of a body from the centre...
- A point P(R 3,0,0) lies on the axis of a ring of mass M and radius R. The ring is located in YZ-plane with its centre at origin...
- There are two particles of masses m_1 and m_2 separated by a distance r. With reference to the above situation, match the items...
- An object is released from a height twice the radius of the earth on the surface of earth. Find the speed with which it will...
- Two identical thin rings each of radius R are coaxially placed at a distance R. If the rings have a uniform mass distribution and...