What is the phase difference at any given instant between two points on a wave that are 1.52 m apart if the wavelength of the wave is 2.13 m?
A) 0.430 rad
B) 2.70 rad
C) 4.48 rad
D) 44.0 rad
E) 119 rad

Question

Quizplus · Accepted Answer

First, we can find the number of wavelengths between the two points: 
1.52 m / 2.13 m = 0.713 wavelengths

Since the phase difference between two points on a wave is equal to the fraction of the wavelength between them times 2π rad:

Phase difference = (0.713)(2π) rad = 4.48 rad

Therefore, the answer is C.

What Is the Phase Difference at Any Given Instant Between