Physics in Depth

Worked Problems Class 12 Physics · NEB 1. The graph of a wave motion is given below. Observe the graph and answer the following questions. (a) What properties of the medium are relevant for the propagation of this type of wave? The given wave is a transverse mechanical wave . For its propagation, the medium should have: Elasticity Inertia In addition, the frictional/resistive force of medium should be minimum to minimize energy loss. (b) What do PQ and PR indicate with respect to the wave? PQ represents the amplitude (i.e. maximum displacement of a particle from mean position) and PR represents the wavelength (i.e. distance between two consecutive troughs/crests). (c) What do you mean by phase in a wave? Why are particles at 'S' and 'R' in anti-phase? Phase in a wave refers to the state of motion of a vibrating particle at a given instant, which defines both the position and direction of motion. Particles S and R are in anti-phase ...