Two Sources, S₁ and S₂, Each Emit Waves of Wavelength $\lambda$

question 41

Multiple Choice

Two sources, S₁ and S₂, each emit waves of wavelength $\lambda$ in the same medium. The phase difference between the two waves, at the point P shown, is . The quantity $\varepsilon$ is:

• A) the distance S₁S₂
• B) the angle S₁PS₂
• C) \(\pi\)/2
• D) the phase difference between the two sources
• E) zero for transverse waves, \(\pi\) for longitudinal waves

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