A progressive wave has a wavelength of 50cm. calculate the phase difference between two points...
PHYSICS
WAEC 1997
A progressive wave has a wavelength of 50cm. calculate the phase difference between two points at a distance of 20cm apart.
- A. 10/3 π
- B. 5/2 π
- C. 4/5 π
- D. 2/3 π
Correct Answer: C. 4/5 π
Explanation
Phase difference = \(\frac{2\pi x}{\lambda}\)
= \(\frac{2\pi \times 20}{50}\)
= \(\frac{4}{5} \pi\)
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