Multiple choice general knowledge sports

RADAR and SONAR uses ____ and ____ .

  1. sound wave , electro magnetic wave

  2. electro-magnetic wave , sound wave

  3. sound wave, sound wave

  4. electromagnetic wave, electromagnetic wave
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

RADAR (Radio Detection and Ranging) uses electromagnetic waves (radio waves) to detect objects, while SONAR (Sound Navigation and Ranging) uses sound waves for underwater detection. The order in option B is RADAR first, then SONAR - electromagnetic wave for RADAR and sound wave for SONAR. This order matches the question sequence.

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