Suppose you send two different frequencies down the tube like we did in Part IV

Question

Suppose you send two different frequencies down the tube like we did in Part IV One frequency is 100 Hz and the other is 1000 Hz. Which (if either) will echo back to the microphone the fastest? 8. Part V Sound Quality 9. Based on your observations, describe the main difference(s) between music and noise in terms of the waveform shape and frequency components of the various sounds. 10. Consider the three waveforms shown below. Which waveform has the greatest frequency? Which waveform has the greatest amplitude? 11. Match each of the sound intensity vs. time graphs (A, B, C) on the left with its corresponding sound intensity vs. frequency graph (1, 2, 3) on the right. 183

Explanation / Answer

8. Speed of sound doesn't depend on the frequency of the wave, echo has the same speed, so both echo(s) will come at the same moment.

9. Music has reasonably smooth waveform and the frequency charectaristics are regular and evenly spaced. But nose is a superposition of many random frequencies which creates a rough waveform.

10. As B has the most number of full waves in it, so it has the greatest frequency. And C has the greatest amplitude.

11.

A----> 2 ,

B----> 3 ,

C----> 1.

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