Q. A remote control gadget (for TV etc.) has in it

  • (A) a small oscillator that emits electric pulses
  • (B) a small transmitter that emits infrared signals
  • (C) a small electromagnet, that emits electromagnetic waves
  • (D) none of these
✅ Correct Answer: (B) a small transmitter that emits infrared signals

Published by Rakesh Yadav ⭐ 5.76K Points at 18-Oct-2021 10:50 am in Physics

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