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

question 29

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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