When two harmonic sound waves of close but not equal) frequencies are heard at the same time, we hearA. a sound of sililar frequencyB. a sound of frequency which is the average of two close frequency which is the average of two close frequenciesC. audibly distinct waxing and waning of the intensity of the sound with a frequency equal to the difference in the two close frequenciesD. All of the above

When two harmonic sound waves of close but not equal) frequencies are

1.	When two harmonic sound waves of close but not equal) frequencies are heard at the same time, we hearA. a sound of sililar frequencyB. a sound of frequency which is the average of two close frequency which is the average of two close frequenciesC. audibly distinct waxing and waning of the intensity of the sound with a frequency equal to the difference in the two close frequenciesD. All of the above
Answer» Correct Answer - D When two harmonic sound waves of close (but not equal) frequencies are heard at the same time, we hear a sound of similar frequency (average of two close frequencies) The intensity of the sound heard is waxing and waning (varying) with a frequency `= \|v_(1) - v_(2)\|`, where `v_(1) and v_(2)` are the individual frequencies of the waves.

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