Bats navigate and find food by:
Correct answer: C. Echo location
- A. Ultrasonic
- B. Amplitude
- C. Echo location
- D. Refraction
Explanation
Bats emit ultrasonic pulses and interpret returning echoes (echolocation) to determine distance, direction and nature of objects, so echolocation is the mechanism.
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About Waves
Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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