Question:medium
A bat emits an ultrasonic sound wave at $33.0$ kHz and receives an echo $0.1$ s later. What is the distance of the bat from the object-producing echo? (Speed of sound in air is $330$ m/s)
A bat emits an ultrasonic sound wave at $33.0$ kHz and receives an echo $0.1$ s later. What is the distance of the bat from the object-producing echo? (Speed of sound in air is $330$ m/s)
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Always remember to divide by 2 in echo problems! The wave has to travel to the target and back, so the time given is for a round trip.
Updated On: May 1, 2026
- $10.0$ m
- $20.0$ m
- $33.0$ m
- $66.0$ m
- $16.5$ m
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The Correct Option is
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