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Two audio speakers are kept some distana...

Two audio speakers are kept some distanace apart and are driven by the same amplifier system. A person is sitting at a place 6.0 m from one of the speakers and 6.4 m from the other. If the sound signal is continuously varied from 500 Hz to 5000 Hz, what are the frequencies for which there is a destructive interference at the place of the listener ? Speed of sound in air `= 320 m//s`.

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Two audio speakers are kept some distance apart and are driven by the same amplifier system. A person is sitting at a place 6.0 m from one of the speakers and 6.4 m from the other. If the sound signal is continuously varied from 500 Hz to 5000 Hz, what are the frequencies for which there is a destructive interference at the place of the listener? Speed of sound in air = 320 ms^-1

The frequency of the whistle of a train is observed to drop from 280 Hz to 260 Hz as the train moves away from a stationary listerner on the platform. Calculate the speed of the train, if speed of sound in air is 340 m/s.

Figure 7.20 shows a tube structure in which signal is sent from one end and is received at the other end . The frequency of the sound source can be varied electronically between 2000 to 5000 Hz . Find the frequencies at which maxima of intensity are detected . The speed of sound in air 340 m//s .

Two stereo speakers are separated by a distance of 2.40 m. A person stands at a distance of 3.20 m directly in front of one of the speakers as shown in figure. Find the frequencies in the audible range (20-2000 Hz) for which the listener will hear a minimum sound intensity. Speed of sound in air = 320 ms^-1

In the shown figure ABCDE is a tube which is open at A and D. A soruce of sound A is placed in front of A. if frequency of the source can be varried from 2000 Hz to 4000 Hz. Find frequencies at which a detector placed in front of D receives a maxima of intensity. (Given speed of sound =340m//s )

A siren emitting a sound of frequency 2000 Hz moves away from you towards a cliff at a speed of 8 m/s. (a) What is the frequency of the sound you hear coming directly from the siren. (b) What is the frequency of sound you hear reflected off the cliff. Speed of sound in air is 330(m)/(s) .

Two stereo speaks S_(1) and S_(2) are separated by a distance of 2.40 m . A person (P) is at a distance of 2.40 m . A person (P) is at a distance of 3.20 m directly in front of one of the speakers as shown in Fig. 7.8. Find the frequencies in the audible range ( 20 - 20,000 Hz) for which the listener will hear a minimum sound intensity . Speed of sound in air = 320 m//s .

Two trains are travelling towards each other both at a speed of 90 km h^-1 . If one of the trains sounds a whistle at 500 Hz, what will be the apparent frequency heard in the other train ? Speed of sound in air = 350 m s^-1 .

The distance between the two identical speakers shown in Fig. 14.3.3 are 4.00m. They are driven by the same osicllator. Initially a listner stays at L at a distance 8.0 m from the centre of the line connecting the two speakers. The listner then walks to the point A where AL=0.4m. The first minium is sound intensity in heard just the listener reaches the point A. Find the frequency of the oscillator. Speed of sound in air is 340 m/s.

A person is listening to a tone of 500 Hz sitting at a distance of 450 m from the source of the sound. What is the time interval between successive compressions from the source ?

AAKASH SERIES-WAVE MOTION AND SOUND-PROBLEMS (LEVEL - II)
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  2. Label the figure.

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  3. Two audio speakers are kept some distanace apart and are driven by the...

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  4. Two loudspeakers radiate in phase at 170 H(Z). An observer sits at 8 m...

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  5. Two loudspeakers radiate in phase at 170 H(Z). An observer sits at 8 m...

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  6. Two loudspeakers radiate in phase at 170 H(Z). An observer sits at 8 m...

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  7. In a resonance tube experiment to determine the speed of sound in air,...

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  8. In a resonance column experiment, a tuning fork of frequency 400 Hz is...

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  9. In a resonance column experiment, a tuning fork of frequency 400 Hz is...

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  10. A small source of sound oscillates in simple harmonic motion with an a...

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  11. A boy riding on his bike is going towards east at a speed of 4 sqrt2 m...

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  12. A source emitting sound at frequency 4000 Hz, is moving along the Y-ax...

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  13. A source of sound emitting a 1200 Hz note travels along a straight lin...

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  14. A source of sound emitting a 1200 Hz note travels along a straight lin...

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  15. A source emitting a sound of frequency f is placed at a large distance...

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  16. A whistle of frequency f0 = 1300 Hz is dropped from a height H = 505 m...

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  17. A detector is released from rest over a source of sound of frequency f...

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  18. A source S of acoustic wave of the frequency v0=1700Hz and a receiver ...

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  19. A sound source moves with a speed of 80 m//s relative to still air tow...

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  20. A sound source moves with a speed of 80 m//s relative to still air tow...

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