Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
BITSAT2024PhysicsGravitationActual

The distance between Sun and Earth is R . The duration of year if the distance between Sun and Earth becomes 3 R will be:

Options

  1. A3 years
  2. B3 years
  3. C9 years
  4. D3 3 years

Correct answer

D. 3 3 years

Step-by-step solution

Basically 1 year is equal to time period of earth revolution around sun. So, T_i=1 year Now, T^2 R^3 ( T₂ T₁ )^2= ( R₂ R₁ )^3 T₂= ( R₂ R₁ )^ 3 / 2 T₁= ( 3 R R )^ 3 / 2 1=3 3 years.

Practice Gravitation on Quantrex Academy →

More from Gravitation

A body which is initially at rest at a height R above the surface of the Earth of radius R, falls freely towards the Earth, then its velocity on reaching the surface of the Earth i 2024For a particle inside a uniform spherical shell, the gravitational force on the particle is 2024The kinetic energy of a satellite in its orbit around the earth is E . What should be the kinetic energy of the satellite so as to enable it to escape from the gravitational pull o 2024Two identical particles each of mass ' m ' go round a circle of radius a under the action of their mutual gravitational attraction. The angular speed of each particle will be: 2023If V is the gravitational potential due to sphere of uniform density on it's surface, then it's value at the center of sphere will be: 2023Two planets A and B of radii R and 1.5 R have densities and / 2 respectively. The ratio of acceleration due to gravity at the surface of B to A is : 2023Suppose the law of gravitational attraction suddenly changes and becomes an inverse cube law i.e. F 1 r³ , but still remaining a central force. Then 2021A point particle is held on the axis of a ring of mass m and radius r at a distance r from its centre C. When released, it reaches C under the gravitational attraction of the ring. 2021 Full Gravitation list All BITSAT PYQs