Answered: As discussed in the chapter, many…

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter17: Superposition And Standing Waves

Section: Chapter Questions

Problem 42AP: Two speakers are driven by the same oscillator of frequency f. They are located a distance d from...

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As discussed in the chapter, many species of bats find flying insects by emitting pulses of ultrasound and listening for the reflections. This technique is called echolocation. Bats possess several adaptations that allow them to echolocate very effectively.

Some bats have specially shaped noses that focus ultrasound echolocation pulses in the forward direction. Why is this useful?
A. Increasing intensity reduces the time delay for a reflected pulse.
B. The energy of the pulse is concentrated in a smaller area, so the intensity is larger; reflected pulses will have a larger intensity as well.
C. Increasing intensity allows the bat to use a lower frequency and still have the same spatial resolution.

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