A loudspeaker having a diaphragm that vibrates at 1250 Hz is traveling at 80 m/s directly toward a pair of holes in a very large wall in a region for which the speed of sound is 344 m/s. You observe that the sound coming through the openings first cancels at 11.4 deg with respect to the original direction of the speaker when observed far from the wall. How far apart are the two openings? What angles would the sound first cancel if the source stopped moving?

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A: Initial distance , r1 = 3.6m Initial intensity at r1, I1 = I W/m2 r2 = 7.2m

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A: The condition for destructive interference is

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A:

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A:

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Q: The two speakers are placed 40.0 cm apart. A single oscillator makes the speakers vibrate in phase…

A: SOlution: Given that d = 40 cm f = 1.98 kHz

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A:

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A: Solution: (a) Let a be the radius of the cylinder, and h be the height of the cylinder, then…

Q: Sound (speed = 343 m/s) exits a diffraction horn loudspeaker through a rectangular opening like a…

A: We have  givenSpeed (v)=343 m/sWidth (d)=0.070  mFrequency (f)=11000 Hz

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A:

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A:

Q: A 3.14-kHz tone is being produced by a speaker with a diameter of 0.220 m. The air temperature…

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A:

Q: Certain blue lights have a frequencey of 6.9 x 106 Hz. What is the wavelength? O 7.85 m O 43.5 m O…

A: Given data: Frequency f=6.9×106Hz. Wavelength λ=?

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Q: A riverside warehouse has two open doors, as in the figure below. Its interior is lined with a…

A: Given: distance of first minima y=20.0 m distance of screen D =150m wavelength λ=2.80 m

Q: A pulse in a less dense medium is traveling towards the boundary with a more dense medium. Medium1…

A: Here given a pulse which is moving from less dense medium to high dense medium. we have to find out…

Q: 43. Light waves pass through an opening and interfere, producing bright and totally dark areas.…

A: Bright areas are produced when there is constructive interference.While dark areas are produced when…

Q: The figure shows a loudspeaker A and point C, where a listener is positioned. [AC| = 4.00 m and the…

A: Speed of sound=343m/s Ac=4m Angle=44 degree

Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.