If You Project a Red, a Green, and a Blue

question 19

Multiple Choice

If you project a red, a green, and a blue light into space, what type of light will be perceived at the point where the three lights cross?

• A)ultraviolet light
• B)infrared light
• C)black light
• D)white light

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Definitions:

Ophthalmoscopy

A medical examination of the eye's interior, especially the retina, using an instrument called an ophthalmoscope.

Tonometry

A diagnostic test to measure the pressure inside the eye, used primarily in screening and monitoring for glaucoma.

Nyctalopia

Night blindness, a condition making it difficult or impossible to see in low light or darkness.

Nyctal

Relating to the night; often used in the context of nyctalopia, or night blindness.