Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
In Physics, Lagrangian point refers to:
1) A point where the gravitation force of two large bodies over a small body becomes equal2) A point beyond which earth’s gravity can’t influence an object3) A point where a body doesn’t experience gravitational forceChoose the correct statements:
1 only
1 and 3 only
2 only
1, 2 and 3
Gravitational Waves:
1) Were first time proposed by Henri Poincaré2) Travel with speed of light3) Challenges the foundations of Newtonian physics.Choose the correct statements:
1 and 2 only
2 and 3 only
In respect of the difference of the gravitational force from electric and magnetic forces, which one of the following statements is true?
Gravitational force is stronger than the other two
Gravitational force is attractive only, whereas the electric and the magnetic forces are attractive as well as repulsive.
Gravitational force has a very short range.
Gravitational force is a long-range force, while the other two are short-range forces
Which one of the following is an object with such a strong gravitational field that even light cannot escape from its surface?
Neutron star
White dwarf
Blackhole
Supernova star
which of the following factors, upon, which the escape velocity of an object from earth depends upon?
body mass
Place of launch
Direction of launch
Place where to launch
