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प्रश्न
How do bats locate their prey during a flight?
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उत्तर
Bats produce ultra sound which returns after striking an obstacle in their way. By hearing the reflected round, bats can judge the distance and direction of obstacle/prey in their way and hence bats can catch their prey during flight.
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संबंधित प्रश्न
A microphone is connected to the Y-input of a C.R.O Three different sounds are made in turn in front of the microphone. Their traces (a), (b) and (c) produces on the screen are shown in following figure.
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| (a) | (b) | (c) |
- Which trace is due to the loudest sound? Give reason for your answer.
- Which trace is due for the sound with the lowest pitch? Explain your answer.
Complete the following sentences:
An average person can hear sound of frequencies in the range ______ to _________.
Complete the following sentence:
Bats can produce and hear ___________ sound.
State two applications of ultrasound.
The properties of ultrasound that make it useful are
What do you understand by the term infrasonic vibrations?
What does SONAR stand for?
What are hearing aids?
State the main components of a hearing aid.
State the properties of ultrasound that make it useful.
