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प्रश्न
Complete the following sentence:
Infrasonic sound is of frequency ______________.
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उत्तर
Infrasonic sound is of frequency below 20 Hz.
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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 _________.
Name the sound of the frequency given below:
10 Hz
State two applications of ultrasound.
A man can hear the sound of frequency :
Sonar makes use of :
Is the energy carried by the ultrasound very high or very low?
State the main components of a hearing aid.
Describe a simple method to find the depth of a submerged ship.
1 hertz is equal to
