Question

The bottom part of the wave is known as___________.
A. Wave crest
B. Wave trough
C. Wavelength
D. Wave height

Answer 1

Hint: Wave movements transfer energy from one place to another and require some vibrating source.All waves function in a certain distinct way and can withstand refraction, reflection, interference and diffraction.

Complete Answer: Looking at the above options:
Option A: A crest point on a wave is the maximum value of upward displacement within a cycle. This option is incorrect.

Option B: The lowest part of the wave is the trough. Wave height is the vertical distance between the crest and the trough and the horizontal distance is known as the wavelength. This option is correct.

Option C: Wave length is the spatial interval of a systematic wave. The inverse of the wavelength is called the spatial frequency and it is designated by the Greek letter lambda. This option is incorrect.

Option D: Wave height of a surface wave is the difference between the elevations of a crest and a neighbouring trough. This option is incorrect.

Hence, the correct option is B.

Note:
-Waves are an energy transport phenomenon. As a disruption moves through a medium from one particle to its neighboring particle, energy is transferred from one end of the medium to the other.
-Movement of water, in the form of waves, tides and currents, plays a significant role in our oceans. They influence all marine organisms. Wave action is one of the most crucial environmental climates influencing life in the sea.