An application of Doppler's effect that is used to measure the depth of ocean is
Correct answer: B. Sonar.
- A. Radar.
- B. Sonar.
- C. Red shift.
- D. Blue shift.
Explanation
The correct answer is 'sonar.' Sonar is a technique that uses sound waves to detect and measure objects underwater, including ocean depth. The Doppler effect plays a role in sonar by allowing the calculation of changes in frequency of the sound waves as they bounce off the ocean floor, providing accurate depth readings. Radar, on the other hand, uses radio waves and is generally used in air and space to detect objects but not for measuring ocean depths. Red shift and blue shift are phenomena related to light waves and are not applicable to measuring ocean depth.
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