A progressive wave has a wavelength of 50cm. calculate the phase difference between two points at a distance of 20cm apart.

By: |Published on: Aug 28|Categories: Physics WAEC| 0 comments

A. 10/3Ï€
B. 5/2 π
C. 4/5 π
D. 2/3 π
E. π/3

Correct Answer:

Option C – 4/5 Ï€

Explanation

Phase difference = 2πx/λ

= 2π×20/50

= 4/5Ï€

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