What is the time period of the seconds pendulum, on a planet similar to earth, but mass and radius three times as that of the earth?

What is time period of a second's pendulum at the centre of the earth?

The time period of a seconds pendulum on a planet, whose mass is twice that of the earth and radius is equal to the diameter of the earth, will be

Time period of second pendulum on a planet, whose mass and diameter are twice that of earth, is

Time period of second pendulum on a planet, whose mass and diameter are twice that of earth, is

What will be the relation between the acceleration due to gravity on the surface of the earth and on a planet respectively, whose mass and radius are four times that of the earth ?

What will be the relation between the acceleration due to gravity on the surface of the earth and on a planet respectively, whose mass and radius are four times that of the earth ?

What is the time period of a simple pendulum if length of the pendulum is equal to the radius of Earth ?

What is time period of a pendulum hanged in a satellite ? (T is time period on earth)

The diameter of a planet is four times that of the earth. Find the time period of a pendulum on the planet, if it is a second pendulum on the earth. Take the mean density of the planet equal to that of the earth,