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problems with solutions

Topic:Waves and Oscillations

I.D	Level	Problem	Problem Topic
403	High school	Sound A sound wave traveling at 320 m/s , is emitted by the foghorn of a tugboat . An echo is heard 3.29 s later. How far is the reflecting object ? Answer in units of m . . . . continues Click to Purchase Solution	Waves and Oscillations
671	High school	An aggressive piano increase the tension on a certain piano wire by 37% . How does the frequency of the sound that the wire will produce after this is done compare to the frequency before ? . . . continues Click to Purchase Solution	Waves and Oscillations
672	High school	A certain person in a typical conversation speaks at a sound level of 62 dB . The music at a certain rock concert reaches a sound level of 130 dB. How many times as great is the intensity of the music ? . . . continues Click to Purchase Solution	Waves and Oscillations
673	High school	As per the figure at “click here” Suppose point number 8 is 8.9 cm to the right of the center line . The screen is positioned 220 cm from the slits . The sources emits red light with wavelength 6.2 x 10^-7 m . Calculate the separation between the slits . . . . continues Click to Purchase Solution	Waves and Oscillations
674	High school	Two identical point sources produce water waves with a wavelength of 0.0284 m . The sources are 0.129m apart . (a) Find the smallest angle away from the center line at which constructive interference occurs . (b) Find the second smallest angle away from the center line at which constructive interference occurs ? (c) Find th . . . continues Click to Purchase Solution	Waves and Oscillations
675	High school	Two identical sources produce waves along the surface of a tank of water . At all points along the center line between these two sources , there is constructive interference . Lets pick one point on this center line and call it P . The nearest point to P at which destructive interference occurs are 10.7 cm from one source and 11.9 cm from the other . . . continues Click to Purchase Solution	Waves and Oscillations
676	High school	A single microphone feeds simultaneously into two speakers . Placed a meter apart facing an outdoor audience (there are no reflecting walls) . Assuming the input to the mike is human speech with the frequency of 500Hz . at what angle to the forward direction would the speaker output be most difficult to hear? Give your answer in degrees . . . . continues Click to Purchase Solution	Waves and Oscillations
677	High school	Electrons with K = 100eV are directed at two narrow slits a distance d apart . If the angle between the central maximum of the resulting interference pattern and the next maximum is to be one degree , What should d be ? . . . continues Click to Purchase Solution	Waves and Oscillations
678	High school	Show that the crests of a wave Psi=Asin (ax-bt) move to the right at a speed v equal to the ration of the coefficients of t and x: that is v=b/a . . . . continues Click to Purchase Solution	Waves and Oscillations
679	High school	Does Hugen’s principle apply to sound waves ? to water waves ? . . . continues Click to Purchase Solution	Waves and Oscillations

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