Two waves of equal amplitude and the same angular frequency travel in the same…

PHYSICS · Single correct · CBSE · Physics · Waves · Waves

Problem

Two waves of equal amplitude

A

and the same angular frequency travel in the same direction with a phase difference

\theta

. Which expression represents the amplitude of the resultant wave produced at a point where they superpose? (a)

2A\cos\dfrac{\theta}{2}

(b)

2A\cos\theta

(c)

2A\sin\dfrac{\theta}{2}

(d)

A(1+\cos\theta)