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प्रश्न
The properties of ultrasound that make it useful are
पर्याय
High power and high speed
High power and good directivity
High frequency and high speed
High frequency and bending around the objects.
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उत्तर
The properties of ultrasound that make it useful are High power and good directivity
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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:
Infrasonic sound is of frequency ______________.
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.
What does SONAR stand for?
State the main components of a hearing aid.
State the properties of ultrasound that make it useful.
1 hertz is equal to
