![]() ![]() Sound waves are emitted from two speakers. As the pulses pass through each other, they will interfereĨ. The pulses will pass through each other and produce beatsĮ. ![]() The pulses will interfere to produce a standing waveĭ. The pulses will diffract from each otherĬ. The pulses will reflect from each otherī. Which one of theįollowing statements concerning the situation is true?Ī. Two pulses of identical shape travel toward each other in oppositeĭirections on a string, as shown in the figure. Period of the sound emitted from the horn?ħ. The first two regions of compression of the emitted sound waves. The car's hornĬontinuously emits a 2.20 × 102 Hz sound. The car in the figure is moving to the left at 35 m/s. At what distance is the intensity level 95 dB?Ħ. At a distance of 5.0 from a point sound source, the sound intensity The threshold of hearing for the librarian is 1.00 × 10-12 W/m2/ĥ. What is the minimum distance the boys must beĪway from the librarian so that she will not be able to hear them? The radiated sound powerįrom one boy's mouth is 1.2 × 10-9 W and it spreads out uniformly inĪll directions. Determine the speed of sound in an aluminum rod.Ĥ. ![]() The Young's modulus of aluminum (density = 2700 kg/m3) isĦ.9 × 1010 N/m2. The sound intensity of the bell does not changeģ. The speed of the sound gradually increaseĮ. The frequency of the sound gradually decreasesĭ. The frequency of the sound gradually increasesĬ. The sound intensity gradually decreasesī. Hear as the air is slowly removed from the jar by the pump?Ī. A bell is ringing inside of a sealed glass jar that is connected to a For aįixed wavelength, what is the frequency when this tension isĢ. (f = 261.63 Hz) by carefully adjusting the tension is the string. A certain string on a piano is tuned to produce middle C The monochromatic light with a wave length is examined.Ĩ0023 Diffraction in imaging system Explain succintly the role diffraction plays in the ultimate resolution of an imaging system.ĭiffraction is a very curious behavior of waves when they encounter an obstacle or an opening.1. This job uncovers the diffraction angle of a transmission. Therefore, the diffraction angle = Theta = 16.58 degree. A loudspeaker is a transducer which converts electric signals to sound signals. The electric signals going through the headset are converted to sounds using a loudspeaker. Physics Questions on Oscillations and Waves The opening of a diffraction horn has a width What is diffraction angle? A 1500-Hz sound and a 8500-Hz sound each emerge from a loudspeaker through a circular opening whose diameter is 0.30 m.ĥ865 Physics: Diffraction angle of sound emerging from loudspeaker wavelength of sound (a) When sound emerges from a loudspeaker, is the diffraction angle determined by the wavelength, the diameter of the speaker, or a combination of these two factorsįor a diffraction horn loudspeaker, the sound emerges through a What is diffraction angle?ĥ954 Physics: Diffraction of sound from a loudspeaker. Physics: Diffraction of sound from a loudspeaker. At the center and front of the stage is a diffraction horn loudspeaker. Sound waves: Distance between two seats at which the tone of a horn cannot be heardĩ0439 Distance between two seats the tone of a horn cannot be heard A row of seats is parallel to a stage at a distance of 8.7 m from it. ![]()
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