If the frequency of a sound wave is 50 Hz, then what is its time period?

What is the name of the principle which states that each point on a wavefront acts as a source of secondary wavelets that spread in all directions and form a new wavefront?

Who, in 1816, modified Newton's formula for the speed of sound to take into account adiabatic compression in air?

Which type of wave is a sound wave in air?

What is required for the generation of a sound wave?

What is the nature of wavefront from a point source in an isotropic medium?

The crest of a wave is the point where the disturbance is at:

Which type of wave is primarily formed on a stretched string when plucked or disturbed?

Which of the following best describes the shape of a sinusoidal wave signal during one complete cycle?