List of top Physics Questions on Gravitation asked in Punjab PMET

Two planets $ A $ and $ B $ have the same material density. If the radius of $ A $ is twice that of $ B $ , then the ratio of escape velocity $ \frac{v_{A}}{v_{B}}$ is

At what depth below the surface of the earth, acceleration due to gravity $g$ will be half its value $1600\,km $ above the surface of the earth?

Assuming earth to be a sphere of a uniform density, the value of $g$ in a mine $100\, km$ below the earth surface will be

The angular speed of earth, so that the object on equator may appear weight less, is $ (g=10)\,m/s^{2}$ , radius of earth $6400\,km$

Mass of moon is $ 1/81 $ times that of earth and its radius is $ 1/4 $ the radius of earth. If escape velocity on the surface of the earth is $11.2\,km/s $ . Then the value of escape velocity at surface of the moon will be