JEE MainPhysicsGravitationMCQ+4 / −1
Figure shows elliptical path abcd of a planet around the sun S such that the area of triangle csa is the area of the ellipse. (See figure) With db as the semimajor axis, and ca as the semiminor axis. If t1 is the time taken for planet to go over path abc and t2 for path taken over cda then : 

- At1 = t2
- Bt1 = 2t2
- Ct1 = 3t2
- Dt1 = 4t2
More from Gravitation
- An astronaut of mass m is working on a satellite orbiting the earth at a distance h from the earth’s surface. The radius of the earth is R, while its mass is M. The gravitational pull FG on the astronaut is :2016 · Multiple correct
- A satellite is revolving in a circular orbit at a height from the earth's surface (radius of earth ). The minimum increase in its orbital velocity required, so that the satellite could escape from the earth's…2016 · MCQ
- From a solid sphere of mass and radius a spherical portion of radius is removed, as shown in the figure. Taking gravitational potential at the potential at the center of the cavity thus formed is: (… Includes diagram2015 · MCQ
- Four particles, each of mass and equidistant from each other, move along a circle of radius under the action of their mutual gravitational attraction. The speed of each particle is :2014 · MCQ
- What is the minimum energy required to launch a satellite of mass from the surface of a planet of mass and radius in a circular orbit at an altitude of ?2013 · MCQ
- The mass of a spaceship is It is to be launched from the earth's surface out into free space. The value of and (radius of earth ) are and respectively. The required energy for this work will be:2012 · MCQ
- Two bodies of masses and are placed at a distance The gravitational potential at a point on the line joining them where the gravitational field is zero is:2011 · MCQ
- The height at which the acceleration due to gravity becomes (where the acceleration due to gravity on the surface of the earth) in terms of the radius of the earth, is:2009 · MCQ