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प्रश्न
Calculate the distance covered by the Ultrasonic wave having a velocity of 1.5 kms-1 in 14 s, when it is received after reflection by the receiver of the SONAR.
संख्यात्मक
उत्तर
For an echo to occur
Wave velocity = `(2("distance"))/"time"`
1500 = `(2("distance"))/14`
∴ distance = (1500 × 7)
= 10500 m
∴ Distance covered by ultrasonic wave is 10500 m.
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Use of Echoes
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संबंधित प्रश्न
Name the waves used for echo depth sounding.
What is meant by sound ranging?
Give one use of sound ranging.
What is 'SONAR'?
State the use of echo in medical science/field.
State the use of echo by a bat, dolphin and fisherman.
Name the waves used in SONAR.
Give one reason for the use of ultrasonic waves in echo depth sounding.
State the principle on which SONAR is based.
