AP EAMCET · PHYSICS · Waves and Sound
Four light sources produce the following four waves :
(i) \(y_1=a \sin \left(\omega t+\phi_1\right)\)
(ii) \(y_2=a \sin 2 \omega t\)
(iii) \(y_3=d^{\prime} \sin \left(\omega t+\phi_2\right)\)
(iv) \(y_4=d^{\prime} \sin (3 \omega t+\phi)\)
Superposition of which two waves give rise to interference?
- A (i) and (ii)
- B (ii) and (iii)
- C (i) and (iii)
- D (iii) and (iv)
Answer & Solution
Correct Answer
(C) (i) and (iii)
Step-by-step Solution
Detailed explanation
Interference phenomenon takes place between two waves which have equal frequency and propagate in same direction. Hence, \(\begin{aligned} & y_1=a \sin \left(\omega t+\phi_1\right) \\ & y_3=d^{\prime} \sin \left(\omega t+\phi_2\right) \end{aligned}\) will give rise to…
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