# As a dolphin swims toward a fish, the dolphin sends out sound waves to determine the direction the fish is moving. If the frequency of the reflected waves is higher than that of the emitted waves, is the dolphin catching up to the fish or falling behind?

makaunawal5 2022-07-19 Answered
As a dolphin swims toward a fish, the dolphin sends out sound waves to determine the direction the fish is moving. If the frequency of the reflected waves is higher than that of the emitted waves, is the dolphin catching up to the fish or falling behind?
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## Answers (1)

bulgarum87
Answered 2022-07-20 Author has 16 answers
If the frequency of the reflected waves is higher than that of the emitted waves, then the dolphin is catching up with the fish |according to the doppler efect.
If we consider the current location of the fish as the "source" of the reflected waves, then the reflected waves having a higher frequency indicates that the dolphin, which we consider as the "receiver", is getting nearer to the location of the fishes due to the waves being compressed.
Result:
The dolphin is catching up with the fish.

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