A. wavelength
B. wave coast
C. wave trough
D. wave front

Correct Answer: Option D

D. wave front

Explanation

Wave front is a line or section taken through an advancing wave in which the particles are in phase.

SEE ALSO  A swimming pool is 2.1m deep. If it contains water of refractive index 1.3, calculate the apparent depth of pool?

Copyright warnings! Do not copy.