What fraction of the electromagnetic spectrum is visible to humans?
A) about two-thirds
B) half
C) about one-quarter
D) a very small fraction
E) none

Name: What fraction of the electromagnetic spectrum is visible to humans? A) about two-thirds B) half C) about one-quarter D) a very small fraction E) none
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Question

Quizplus · Accepted Answer

The visible spectrum is only a very small fraction of the entire electromagnetic spectrum, which includes a wide range of wavelengths from radio waves to gamma rays.

What Fraction of the Electromagnetic Spectrum Is Visible to Humans