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Question
Complete the following sentence:
Bats can produce and hear ___________ sound.
Fill in the Blanks
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Solution
Bats can produce and hear ultrasonic sound.
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RELATED QUESTIONS
The sketches I to IV in following Figure show sound waves, all formed in the same time interval.
 |
 |
| I | II |
 |
 |
| III | IV |
Which diagram shows
- a note from a musical instrument
- a soft (or feeble) note,
- a bass (low frequency) note.
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Name the sound of the frequency given below:
10 Hz
Can you hear the sound produced due to vibrations of a seconds pendulum? Give reasons.
State the approximate speed of ultrasound in air.
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Name three animals which can hear ultrasonic vibrations.
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State the properties of ultrasound that make it useful.
