Two identical speakers emit sound waves of frequency \( 680 \mathrm{~Hz} \) uniformly in all dir...

Channel:
PW Solutions
Subscribers:
451,000
Published on ● Video Link: https://www.youtube.com/watch?v=Bb2B2k1rvJQ


Duration: 7:54
11 views
0

Two identical speakers emit sound waves of frequency \( 680 \mathrm{~Hz} \) uniformly in all directions with a total audio output of \( 1 \mathrm{~mW} \) each. The speed of sound in air is \( 340 \mathrm{~m} / \mathrm{s} \). A point \( P \) is a distance \( 2.00 \mathrm{~m} \) from one speaker and \( 3.00 \mathrm{~m} \) from the other.
(a) Find the intensities \( I_{1} \) and \( I_{2} \) from each speaker at point \( P \) separately.
P
(b) If the speakers are driven coherently and in phase, what is the intensity at point \( P \) ?
(c) If they are driven coherently but out of phase by \( 180^{\circ} \), what is the intensity at point \( P \) ?
(d) If the speakers are incoherent, what is the intensity at point \( P \) ?
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-01-18A thin-walled tube of mass \( m \) and radius \( R \) has a rod of mass \( m \) and very small c...
2023-01-18A block \( A \) of mass \( m \) is placed on a smooth horizontal platform \( P \) and between ...
2023-01-18One mole of an ideal monatormic gas is taken round the cyclic process ABCA as shown in figure, C...
2023-01-18A street car moves rectilinearly from station \( A \) (here car stops) to the next station \( B ...
2023-01-18The coefficient of friction between block of mass \( m \) and \( 2 m \) is \( \mu=2 \tan \theta ...
2023-01-18Two spheres of different materials one with double the radius and one-fourth wall thickness of t...
2023-01-18A point sound source is situated in a medium of bulk modulus \( 1.6 \times 10^{5} \mathrm{~N} / ...
2023-01-18Two loudspeakers radiate in phase at \( 170 \mathrm{~Hz} \). An observer sits at \( 8 \mathrm{~m...
2023-01-18Seven identical rods of material of thermal conductivity \( k \) are connected as shown in the g...
2023-01-18माना \( f(x)=\left\{\begin{array}{ll}1+\frac{2 x}{\lambda}, & 0 \leq x1 \\ \lambda x & , 1 \leq ...
2023-01-18Two identical speakers emit sound waves of frequency \( 680 \mathrm{~Hz} \) uniformly in all dir...
2023-01-18Two sound speakers are driven in phase by an audio amplifier at frequency 6 n \( 10 \mathrm{~Hz}...
2023-01-18A siren creates a sound level of \( 60 \mathrm{~dB} \) at a location \( 500 \mathrm{~m} \) from ...
2023-01-18A train of length \( l \) is moving with a constant speed \( v \) along a circular track of radi...
2023-01-18Two speakers separated by some distance emit sound of the same frequency. At some point \( P \) ...
2023-01-18A \( 3 \mathrm{~m} \) long organ pipe open at both ends is driven to third harmonic standing wav...
2023-01-18A point \( A \) is located at a distance \( r=1.5 \mathrm{~m} \) from a point source of sound of...
2023-01-18A source \( S \) and a detector \( D \) of high frequency waves are a distance \( d \) apart on ...
2023-01-18A window whose area is \( 2 \mathrm{~m}^{2} \) opens on a street where the street noise results ...
2023-01-18मान सरल रेखा \( L_{1} \) मूलबिन्दु से होकर जाती है तथा \( L_{2} \) एक सरल रेखा \( x+y=1 \) है। य...
2023-01-18A flute which we treat as a pipe open at both endsi is \( 60 \mathrm{~cm} \) long. (a) What is t...