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The total round-trip distance is 2.4 meters. Dividing this distance by the speed of 345 meters per second gives approximately 0.00696 seconds or nearly 6.96 milliseconds, for the wave to return. Class 9 Science Chapter 10 Sound Waves Characteristics and Applications ...
The correct option is (ii). Frequency equals total oscillations divided by time taken. Dividing 20 compressions by 4 seconds yields 5 oscillations per second, which equals 5 Hz. Chapter 10 Sound Waves Characteristics and Applications Solutions Sound Waves Characteristics and Applications ...
