Gravitation
Kepler's second law (law of areas) is a direct consequence of the law of conservation of:
What is the dimensional formula of Universal Gravitational Constant ($G$)?
The value of acceleration due to gravity ($g$) at the centre of the Earth is:
The relation between escape velocity ($v_e$) and orbital velocity ($v_o$) for a satellite near the surface of Earth is:
If the distance between two masses is doubled, the gravitational force between them becomes:
At what place on the Earth's surface is the value of acceleration due to gravity ($g$) maximum?
According to Kepler's third law, the square of time period of revolution ($T^2$) of a planet is proportional to:
At what depth $d$ below the Earth's surface does acceleration due to gravity become half of its value at the surface ($g/2$)?
If a planet has mass twice that of Earth and radius twice that of Earth, the ratio of escape velocity on that planet to that on Earth is:
If Earth stops rotating about its axis, the value of $g$ at the equator will:
Total mechanical energy of a satellite of mass $m$ revolving close to Earth's surface in a circular orbit of radius $R$ is:
The orbital speed of a satellite orbiting close to the surface of the Earth is approximately: