Multiple choice

Which medium is used by 'Radar' to trace aeroplanes?

  1. Micro wave

  2. Electric wave

  3. Ultrasonic wave

  4. Sound wave

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Radar (Radio Detection and Ranging) uses microwaves to detect and track aircraft. Microwaves are electromagnetic waves that reflect off metal objects, allowing radar systems to calculate distance and direction.