2. The animal emits a pulse of sound (a longitudinal wave) which, after reflection from objects, is...

Question

2. The animal emits a pulse of sound (a longitudinal wave) which, after reflection from objects, is detected by the animal, this phenomenon is called echolocation. Echolocation waves emitted by whales have frequencies of about 200,000Hz.
(a) What is the wavelength of the whale's wave?
(b) If an obstacle is 100m from the whale, how long after the whale emits a wave is its reflection detected? (Bsea water =2x109 N/m2)

Sudarshan K · Accepted Answer

Sound Speed From Pressure 
Question:
The animal emits a pulse of sound (a longitudinal wave) which, after reflection from objects, is detected by the animal, this phenomenon is called echolocation. Echolocation waves emitted by whales have frequencies of about 200,000Hz.
(a) What is the wavelength of the whale's wave?

2. The animal emits a pulse of sound (a longitudinal wave) which, after reflection from objects, is detected by the animal, this phenomenon is called echolocation. Echolocation waves emitted by whales...

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