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प्रश्न
To detect the obstacles in their path, bats produce ______.
पर्याय
Infrasonic waves
Ultrasonic waves
Electromagnetic waves
Radio waves
उत्तर
To detect the obstacles in their path, bats produce ultrasonic waves.
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संबंधित प्रश्न
In an experiment, Anhad studies sound waves. He sets up a loudspeaker to produce sound as shown below :
Anhad adjusts the signal to the loudspeaker to give a sound of frequency 200 Hz.
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(b) Explain how Anhad receives sound in both ears.
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A medium is necessary for ______ of sound.
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