Questions
Ultrasonic signal sent from SONAR returns to it after reflection from a rock after a lapse of 1 sec. If the velocity of ultrasound in water is 1600 ms–1, the depth of the rock in water is
a
300 m
b
400 m
c
500 m
d
800 m
detailed solution
Correct option is D
If d is the distance of rock from SONAR then 2d=vt⇒d=v×t2=1600×12=800 mTalk to our academic expert!
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