everyday science MCQ #3402

A remote-control gadget (for TV, etc.) has in it:

everyday science MCQ #3402

  1. Question 1

    Q1. A remote-control gadget (for TV, etc.) has in it:

    • A) A small electromagnet that emits electromagnetic waves
    • B) A small oscillator that emits electric pulses
    • C) A small transmitter that emits infrared signals
    • D) None of these

    Answer: A small transmitter that emits infrared signals

    Explanation: A small transmitter that emits infrared signals is the scientifically accurate choice. The concept tested here is core everyday science for MDCAT, ECAT, and general ability papers.