An optician prescribes a power = - 0.5 dioptre. The corresponding lens must be a
If an object undergoes a uniform circular motion, then its ?
The motion of a particle is given by a straight line in the graph given above drawn with displacement (x) and time (t). Which one among the following statements is correct?
An object moving is undergoing a non accelerated motion. Its rate of change in momentum is
A motor vehicle is moving on a circle with uniform speed. The net acceleration of the vehicle is
The displacement of a particle is given by x = cos2ωt. The motion is