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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 sentence:
Bats can produce and hear ___________ sound.
Name the sound of the frequency given below:
1000 Hz
Can you hear the sound produced due to vibrations of a seconds pendulum? Give reasons.
What is ultrasound?
Explain how do bats locate the obstacles and prey in their way.
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.
Name three animals which can hear ultrasonic vibrations.
What are ultrasonic?
Bats produce ______ sound during screaming.
