A body is said to be in ______if it changes its position with respect to surroundings with time.

A body is said to be in a state of motion if it changes its _____.

The planets keep changing their position with respect to stars.

A body is said to be rigid, if distance between any two position of the particle

A body is said to be in state of………..when its apparent weight is zero.

An isolated metal body is illuminated with monochromatic light and is observed to become charged to a steady positive potential 1.0 V with respect to the surrounding. The work function of the metal is 3.0 eV. The frequency of the incident light is "_______________" .