Physics questions
20027 published questions with worked solutions.
- R is the radius of the earth and is its angular velocity and g_p is the value of g at the poles. The effective value of g at the...
- If the value of the gravitational acceleration at the height h be 1% of its value at the surface of the earth, then h is equal to...
- If the earth were assumed to have uniform density and spherical symmetry, then the value of g in ms^ -2 halfway towards the...
- A spring balance is graduated on sea level. If a body is weighed with this balance at consecutively increasing heights from...
- If both the mass and radius of Earth decrease by 1%, the value of acceleration due to gravity will decrease by nearly
- If a body is taken from the surface of earth to moon, then its weight will
- The density of a newly discovered planet is twice that of earth. The acceleration due to gravity at the surface of the planet is...
- Assuming the earth as a sphere of uniform density, the acceleration due to gravity half way towards the centre of the earth will...
- If the change in the value of 'g' at a height h above the surface of the earth is the same as at a depth x below it, then (both x...
- The value of 'g' at a certain height above the surface of the earth is 16% of its value on the surface. The height is (R = 6300...
- The radius of the Earth shrinks by 1%, its mass remaining the same. The percentage change in the value of g is
- A body weights 63 N on the surface of the Earth. At a height h above the surface of Earth, its weight is 28 N while at a depth h...
- Consider earth to be a homogeneous sphere. Scientist A goes deep down in a mine and scientist B goes high up in a balloon. The...
- What should be the angular speed of earth in radian/second so that a body of 5 kg weights zero at the equator? [Take g=10 m/s^2...
- To have an earth satellite synchronous with the rotation of the earth, it must be launched at proper height moving
- For a satellite that orbits as close to the earth's surface as possible, which of the following statements is INCORRECT?
- The relay satellite transmits the T.V. programme continuously from one part of the world to another because its
- If a body is released from an artificial satellite then
- At a given place where acceleration due to gravity is 'g' m/s^2 , a sphere of lead of density 'd' kg/m^3 is gently released in a...
- What should be the velocity of earth due to rotation about its own axis so that the weight at equator becomes 3/5 of initial...