Visible Light Occupies What Proportion of the Full Wavelength Range

question 372

Multiple Choice

Visible light occupies what proportion of the full wavelength range of electromagnetic radiation?

• A) a very narrow range
• B) two narrow but separate ranges between ultraviolet and infrared radiations, the red and the blue, which mix to give all the other colors
• C) about half of the possible range
• D) almost the full range between radio waves and X-rays

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Definitions:

Electric Current

The flow of electric charge through a conductor.

Absolute Refractory

A period immediately following the transmission of an impulse in nerve or muscle in which a neuron or muscle cell cannot respond to any additional stimulus.

Period

Often refers to a length or span of time in a sequence of events or a specified interval in processes or phenomena.

Neuron

A specialized cell transmitting nerve impulses; a basic building block of the nervous system responsible for processing and transmitting information.