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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 ______________.
Complete the following sentence:
Bats can produce and hear ___________ sound.
Name the sound of the frequency given below:
100 Hz
State the approximate speed of ultrasound in air.
State two applications of ultrasound.
How do bats locate their prey during a flight?
Describe a simple method to find the depth of a submerged ship.
Ultrasound has frequency of vibration
