Ultrasonic waves are those sound waves having frequency
The phenomenon of trade winds takes place due to
Which one among the following waves are called waves of heat energy?
The position-time (x – t) graph for motion of a body is given below :
Which one among the following is depicted by the above graph?
Two copper wires A and B of length l and 2l respectively, have the same area of cross-section. The ratio of the resistivity of wire A to the resistivity of wire B is
Which one among the following is the largest monkey?
