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13 votes
What is true about most of the wavelengths found in the electromagnetic spectrum?

A
They travel only through prisms.
B
They are found in the visible light range.
С
They are dangerous to humans.
D
They are invisible to the human eye.

1 Answer

9 votes
D, you can't see ultraviolet rays and other similar frequency waves with the naked eye.
User Jeffreynolte
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