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QuizMultiple Choice

The Electromagnetic Spectrum — Quiz

Question 2 • Physical Science

The energy of microwaves is less than the energy of ultraviolet light. Which comparison of the energies of electromagnetic waves is correct?

Answer
A
Visible light has higher energy than infrared light because visible light has longer wavelengths.
B
X-rays have lower energy than gamma rays because X-rays have shorter wavelengths.
C
Visible light has higher energy than infrared light because visible light has higher frequencies.
D
X-rays have lower energy than gamma rays because X-rays have higher frequencies.

Explanation

The energy of an electromagnetic wave increases with its frequency and decreases as its wavelength gets longer. Visible light has a higher frequency than infrared light, so visible light has higher energy. Choice A states this correctly; choice D gives the wrong reason because visible light has shorter, not longer, wavelengths than infrared light.

AI-written and checked against the verified answer.

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