Three harmonic waves having equal frequency and same intensity

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

Problem

Three harmonic waves having equal frequency

\nu

and same intensity

I_0

, have phase angles

0

\frac{\pi}{4}

and

-\frac{\pi}{4}

respectively. When they are superimposed the intensity of the resultant wave is close to: (1)

5.8 I_0

(2)

0.2 I_0

(3)

3 I_0

(4)

I_0