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 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 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 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,

Solve the following examples/numerical problems : If the mass of a planet is eight times the mass of the earth and its radius is twice the radius of the earth, what will be the ratio of the escape velocity on the earth to the escape velocity on the planet?