alleryRadar systems used in aircraft navigation use:
AX-radiation
BMicrowaves
CGamma rays
DUltraviolet
Answer & Solution
Correct answer: B. Microwaves
1. Radar needs a wave that travels well through air.
2. It also needs a short enough wavelength to be directed.
3. Microwaves suit radar systems.
4. So the answer is microwaves.
_Source: syllabus Physics, Ch 8 'Electromagnetic Waves'_
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