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प्रश्न
Describe a simple method to find the depth of a submerged ship.
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उत्तर
A ship sends ultrasonic waves downward in the ocean. When the sound waves reaches the ocean floor , they are reflected back to the ship . The time it takes for the signal to return is used to calculate the depth of submerged ship in the ocean.
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संबंधित प्रश्न
Complete the following sentences:
An average person can hear sound of frequencies in the range ______ to _________.
Complete the following sentence:
Ultrasound is of frequency ___________.
Name the sound of the frequency given below:
10 Hz
A man can hear the sound of frequency :
What do you understand by the term sonic vibrations? State the range of sonic vibrations for the human ear.
How do bats locate their prey during a flight?
What are ultrasonic?
Is the energy carried by the ultrasound very high or very low?
What does SONAR stand for? Where do we make use of SONAR?
State the properties of ultrasound that make it useful.
