Which of the following statements is correct?

A. If the constituents of the medium oscillate perpendicular to the direction of wave propagation, we call the wave as a longitudinal wave

B. If the constituents of the medium oscillate along the direction of wave propagation, we call the wave as a transverse wave

C. Frequency of a wave is the number of oscillations of each constituent particle in the vibrating medium per minute

D. The minimum distance between two points in a wave having the same phase at a particular instant of time is called the wavelength

Answer: Option D