Question

The distance between two consecutive compressions(c) or two consecutive rarefactions (R ) is called the
(A). Wavelength
(B). Full Length
(C). Amplitude
(D). Frequency

Answer 1

Hint: Compressions and rarefactions are two different regions in a wave which is related to the answer. We can create compressions and rarefactions by a tuning fork and propagate through the air in an open tube.

Complete step by step solution:
The compressions and rarefactions in a wave are shown below:

Compressions: A region in the longitudinal wave where the particles are close to each other.
Rarefactions: A region in the longitudinal wave where the particles are apart from each other.
So, we can determine the wavelength by measuring the distance between two consecutive compressions or two rarefactions.

Therefore, the correct option is wavelength i.e., option A.

Note: The wavelength of sinusoidal wave is defined as the spatial period of the wave i.e., the distance after which the shape of the wave repeats itself. So, care must be taken about right consideration of right compression and rarefaction while answering.