Waves, longitudinal and transverse, reflection of sound, echo, ultrasonic waves, SONAR.
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Q1 · Sound · MEDIUM
An echo is heard after 2 seconds when a sound is produced near a cliff. If the speed of sound in air is 340 m/s, what is the distance of the cliff?
Q2 · Sound · EASY
Sound waves are:
Q3 · Sound · HARD
A source of sound produces waves of wavelength 1.7 m in air. If the speed of sound is 340 m/s, what is the frequency of the sound?
Q4 · Sound · EASY
The speed of sound is maximum in: