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प्रश्न
What type of waves are generated by SONAR device fixed to a fishing ship ?
विकल्प
water waves
radio waves
sound waves
infrared waves
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उत्तर
SONAR uses ultrasonic sound waves.
(c) Sound waves.
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संबंधित प्रश्न
Give two practical applications of reflection of sound waves.
Explain how bats use ultrasound to catch a prey.
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What name is given to sound waves of frequencies higher than 20 kHz ?
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Explain why, if we strike a table lightly, we hear a soft sound but if we hit the table hard, a loud sound is heard.
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A sonar station picks up a return signal after 3 seconds. How far away is the object ? (Speed of sound in water = 1440 m/s).
Explain how does SONAR work?
Expand the abbreviation of the term SONAR.
