WBCS.LIVE practice question

Which type of electromagnetic radiation has the longest wavelength in the spectrum?

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

Answer options

  1. Infrared rays
  2. Gamma rays
  3. Ultraviolet rays
  4. Radio waves

Correct answer and explanation

Correct answer: Radio waves

Explanation: āœ… Correct Answer: D) Radio waves šŸ“š Explanation: In the electromagnetic spectrum, radio waves occupy the region with the lowest frequency and the longest wavelength. They range from tens of centimeters to several kilometers in length. Because of their long wavelengths, they can easily travel long distances and penetrate through various obstacles, making them ideal for communication.