Multiple choice general knowledge science & technology

which of the following is/are electromagnetic wave?

  1. sound waves

  2. infra-red rays

  3. ultra-violet rays

  4. x-rays
Reveal answer Fill a bubble to check yourself
B,C,D Correct answer
Explanation

Electromagnetic waves are transverse waves that don't require a medium and travel at the speed of light. Infrared, ultraviolet, and X-rays are all parts of the electromagnetic spectrum. Sound waves are mechanical longitudinal waves that require a material medium (solid, liquid, or gas) to propagate and cannot travel through vacuum, making them fundamentally different from electromagnetic waves.

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