A factory whistle emits a note of frequency 450 Hz above the surface of a lake

PHYSICS · Subjective · CBSE · Physics · Sound · Sound

Problem

A factory whistle emits a note of frequency 450 Hz above the surface of a lake. Would a diver directly below the whistle hear a sound of the same, higher, or lower frequency? Give a brief reason for your answer.

Related theory

Wave Description
Waves
Pitch and quality
Sound
Characteristics of sound waves

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