two speakers A and B , placed 1 m apart, each produces sound waves of frequnecy 1800 Hz. In phase. A detector moving parallel to line of speakers distant 2.4 m away detects a maximum intensity at O nd then at P. speed of sound wave is

Two speakers A and B , placed 1m apart, each produce sound waves of frequency 1800 Hz in phase. A detector moving parallel to line of speakers distant 2.4 m away detects a maximum intensity at ɵ and then at P . Speed of sound wave is

Two small loudspeakers A , B ( 1m apart) are connected to the same oscillator so that both emit sound waves of frequency 1700 Hz in phase . A sensitive detector , detects a maximum wave at P on the perpendicular bisector MP of AB and another maximum wave when it first reaches a point Q directly opposite to B . Calculate the speed c of the sound waves in air .

Two small loudspeakers A , B ( 1m apart) are connected to the same oscillator so that both emit sound waves of frequency 1700 Hz in phase . A sensitive detector , detects a maximum wave at P on the perpendicular bisector MP of AB and another maximum wave when it first reaches a point Q directly opposite to B . Calculate the speed c of the sound waves in air .

A sound wave of frequency 400Hz is travelling in air at a speed of 320m/s . Calculate the difference in phase between two points on the wave 0.2m apart in the direction of travel.

Two sources of sound, S_1 and S_2 , emitting waves of equal wavelength 20.0 cm, are placed with a separation of 20.0 cm between them. A detector can be moved on a line parallel to S_1S_2 and at a distance of 20.0 cm from P it. Initially, the detector is equidistant from the two sources. Assuming that the waves emitted by the sources are in phase, find the minimum distance through wffich the detector should be shifted to detect a minimum of sound.

Two sources of sound, S_1 and S_2 , emitting waves of equal wavelength 20.0 cm, are placed with a separation of 20.0 cm between them. A detector can be moved on a line parallel to S_1S_2 and at a distance of 20.0 cm from P it. Initially, the detector is equidistant from the two sources. Assuming that the waves emitted by the sources are in phase, find the minimum distance through wffich the detector should be shifted to detect a minimum of sound.

Two sources of sound S_(1) and S_(2) produce sound waves of same frequency 660 Hz . A listener is moving from source S_(1) towards S_(2) with a constant speed u m//s and he hears 10 beats/s. The velocity of sound is 330 m//s . Then, u equals :