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प्रश्न
Explain how do bats locate the obstacles and prey in their way.
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उत्तर
Bats locate the obstacles and prey in their path by producing and hearing the ultrasound. They emit an ultrasound which returns after striking an obstacle in their way. By hearing the reflected sound and from the time interval (when they produce ultrasound and they receive them back), they can judge the direction and the distance of the obstacle in their way.
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संबंधित प्रश्न
Complete the following sentence:
Ultrasound is of frequency ___________.
Complete the following sentence:
Elephants produce ____________sound.
Name the sound of the frequency given below:
100 Hz
A man can hear the sound of frequency :
Sonar makes use of :
What do you understand by the term infrasonic vibrations?
Name three animals which can hear ultrasonic vibrations.
What is Galton’s whistle? To what use is it put?
State four practical uses of ultrasonic vibrations.
State the main components of a hearing aid.
