(Solved): Two coherent sources of sound waves S_(1) and S_(2) are situated 65 cm apart in air as shown below. ...

Two coherent sources of sound waves

and

are situated 65 cm apart in air as shown below. The two sources vibrate in phase but have different amplitudes of vibration. A microphone M is situated 150 cm from S 1 along the line normal to

and

. The microphone detects maxima and minima of the intensity of the sound. The wavelength of the sound from

to

is decreased by increasing the frequency. The orders of maxima that can be detected at M as the wavelength is increased from 3.5 cm to 12.5 cm . Select one: a. 13.0 cm & 3.3 cm b.

c.