Fig. shows a wave motion in which displacements of particles at an instant is represents as shown. Choose the correct options.

Options

A. If the wave represents a transverse travelling wave in a stretched string, then an element in region B has maximum kinetic energy
B. If it represents a transverse travelling wave in a stretched string, then an element in the region B has maximum potential energy
C. If it represents standing wave in a stretched string, then an element in the region D has maximum potential energy
D. If it represents standing wave in a stretched string, then an element in the region B has maximum kinetic energy

Answer

A, B, C

Explanation

In transverse travelling wave the crest and trough points possess zero kinetic energy as well as minimum elastic potential energy at any instant. The element near mean position has maximum kinetic energy as well as maximum potential energy (due to maximum deformation). In standing wave, element near mean has maximum deformation hence maximum potential energy