Multiple choice general knowledge

Which radiation in sunlight has a wavelength longer than the visible light?

  1. Ultraviolet

  2. Infrared

  3. X-ray

  4. Thermal radiation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In the electromagnetic spectrum, visible light ranges from about 400-700 nanometers. Ultraviolet has shorter wavelengths (<400nm), while infrared has longer wavelengths (>700nm). X-rays have extremely short wavelengths, and thermal radiation is a broad category not specific to solar spectrum position.

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