Question

Which one of waves cannot be seen through electromagnetic spectrum?

• A. radio waves
• B. micro waves.
• C. infrared waves.
• D. ultraviolet waves.

Answer 1

The correct option is D ultraviolet waves.

Red, blue, green, yellow, orange colors are all part of electromagnetic spectrum that are visible to human eye.

The part which is not visible are UV, X-RAY, GAMMA RAY which have lower wavelength than visible light and infrared, radio waves have higher wavelength than visible.