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Physics Medium FPSC Uploaded: 06 Aug 2026

Which type of electromagnetic radiation is used in microwave ovens to heat food?

  • A Microwaves
  • B X-rays
  • C Gamma rays
  • D Ultraviolet rays
Correct Answer: Option A — Microwaves
Explanation:
Microwave ovens use microwave radiation to excite water molecules within food, causing them to vibrate rapidly and generate heat through friction. This efficient heating method cooks food quickly from the inside as well as outside.
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