JEE Advanced · PhysicsEasy
Which part of the electromagnetic spectrum is used in radar systems for aircraft navigation?
- A.Infrared rays
- B.Microwaves
- C.X-rays
- D.Gamma rays
Show correct answer & step-by-step solution
Correct answer: B — Microwaves
Solution
- Radar systems function by emitting electromagnetic waves that reflect off distant objects to determine their location.
- Microwaves are chosen for this purpose because they can be focused into narrow, directional beams.
- These waves effectively penetrate the atmosphere and provide the necessary resolution for tracking aircraft.
- Hence the answer is (B).
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