WBCS.LIVE practice question

TV remote control uses

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Infrared frequency
  2. Radio frequency
  3. Visible frequency
  4. Ultraviolet frequency

Correct answer and explanation

Correct answer: Infrared frequency

Explanation: āœ… Correct Answer: A) Infrared frequency šŸ“š Explanation: Most television remote controls use 'Infrared' (IR) light to send signals to the TV. Since IR light is outside the visible spectrum, the human eye cannot see the beam, but the TV's sensor can detect it easily. The remote pulses the IR light in a specific code for each button pressed. This technology is simple, low-cost, and safe, making it the standard for domestic electronics control.