Q

Which device uses ultrasonic waves to measure distance, direction and speed of underwater objects?

RRB NTPC (Stage-I) 01/04/2021 (Shift-I) 2021
✓ Answer: D SONAR
SONAR transmits sound and detects returning signals from underwater objects.
← Previous Question Next Question →

📚 Related Questions

1 When we stand in a bus facing the driver and the bus… 2 The body of a cooking vessel is made of metal and its… 3 Body A of mass 2 kg and body B of mass 3… 4 If the current in a conductor is doubled while it remains perpendicular… 5 How much energy is consumed by a power of one watt used… 6 A car starts from rest and accelerates uniformly at 2 m/s² for…