search
arrow-left Previous
Next arrow-right
Q: The device that uses ultrasonic waves to measure the distance, direction and speed of underwater objects is called:
  • A. RADAR
  • B. MASER
  • C. CRO
  • D. SONAR
Correct Answer: Option D - SONAR stands for Sound Navigation and Ranging. It is a tool for determining the distance, direction, and speed of underwater objects such as water hills, valleys, icebergs, submarines and sunken ships. It is made up of 2 parts i.e. transmitter and detector. Transmitter produces ultrasound waves and detector reflects it and converts it to the electrical signal. It is used to measure the depth of the sea and to locate underground objects.
D. SONAR stands for Sound Navigation and Ranging. It is a tool for determining the distance, direction, and speed of underwater objects such as water hills, valleys, icebergs, submarines and sunken ships. It is made up of 2 parts i.e. transmitter and detector. Transmitter produces ultrasound waves and detector reflects it and converts it to the electrical signal. It is used to measure the depth of the sea and to locate underground objects.

Explanations:

SONAR stands for Sound Navigation and Ranging. It is a tool for determining the distance, direction, and speed of underwater objects such as water hills, valleys, icebergs, submarines and sunken ships. It is made up of 2 parts i.e. transmitter and detector. Transmitter produces ultrasound waves and detector reflects it and converts it to the electrical signal. It is used to measure the depth of the sea and to locate underground objects.