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प्रश्न
Complete the following sentences:
An average person can hear sound of frequencies in the range ______ to _________.
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उत्तर
An average person can hear sound of frequencies in the range 20 Hz to 20 kHz.
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संबंधित प्रश्न
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.
Complete the following sentence:
Bats can produce and hear ___________ sound.
Name the sound of the frequency given below:
40 kHz
Can you hear the sound produced due to vibrations of a seconds pendulum? Give reasons.
A man can hear the sound of frequency :
What do you understand by the term infrasonic vibrations?
What do you understand by the term ultrasonic vibrations?
State the properties of ultrasound that make it useful.
Ultrasound has frequency of vibration
The range of audible frequency for the human ear is
