A satellite moves in a circular orbit of radius 4R round the earth. The acceleration of the satellite in terms of g is

A wire of length 10m is cooled from 50oC to 10oC. Calculate the decrease in the length of the wire. [c = 3 x 10-5K-1]

What happens to a water pool on a day when the humidity of the air is very low?

Myopic defects in the human eye can be corrected through the use of a

A charged particle is moving in a uniform magnetic field. if the direction of motion of the charged particle is parallel to the magnetic field, the path of the charge will