A series is given with one term missing. Select the correct alternative from the given ones that will complete the series. Padma Shri, Padma Bhushan, Padma Vibhushan, ?
The volume of a right circular cone, whose radius of the base is same as one-third of its altitude, and the volume of a sphere are equal. The ratio of the radius of the cone to the radius of the sphere is :
If the acceleration due to gravity on the surface of earth is g, then the acceleration due to gravity on the surface of a planet whose mass is same as that of earth and radius is half as that of earth is _________________.