What will be the escape speed from earth if the mass of earth is doubled keeping the same size ?

The value of escape speed from the surface of earth is

The value of escape speed from the surface of earth is

The value of escape speed from the surface of earth is

The value of escape speed from the surface of earth is

What will be the escape speed from a planet having radius thrice that of earth and the same mean density as that of the earth ? (Take v_(e)=11.2 km/s)

What will be the escape speed from a planet having radius thrice that of earth and the same mean density as that of the earth ? (Take v_(e)=11.2 km/s)

What will be the escape speed from, a planet having volume 27 times that of earth and the same mean density as that of the earth? Take escape speed from the earth 11.2 km/s, earth and planet are perfectly sphere)

What will be the escape speed from, a planet having volume 27 times that of earth and the same mean density as that of the earth? Take escape speed from the earth 11.2 km/s, earth and planet are perfectly sphere)

In the above question, escape speed from the centre of earth is :