Question

The topmost point of a wave is called its while the bottom-most part of the wave is called its .

• A. wavelength
• B. trough
• C. crest
• D. frequency

Answer 1

Answer: (B), (C)

The correct options are
B trough
C crest

When the water on the surface of the ocean rises and falls, they are called waves. A wave has several parts. The topmost point of a wave is called its crest while the bottom-most part of the wave is called its trough.