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Q. Which waves are used in radar systems?
Answer: micro
Notes: Microwaves are electromagnetic waves of frequency range 1 GHz to 300 GHz. Since they are microwaves of smaller wavelengths, they can be transmitted as a beam signal in a particular direction. Hence, microwaves are used in radars.

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Question Number: 56 in Physics GK 15 - Mechanical & Electromagnetic Waves in above course in App.