Question

Which among the following is true about a wave?

• A. Distance between two consecutive crests makes the wavelength
• B. Distance between two consecutive troughs makes the wavelength
• C. Distance between any crest and a trough makes the wavelength.
• D. Distance between a crest and a trough makes a wavelength.

Answer 1

Answer: (A), (B)

The correct options are
A Distance between two consecutive crests makes the wavelength
B Distance between two consecutive troughs makes the wavelength

The distance between any two consecutive crests or troughs is called the wavelength. The wavelength is measured in metres.