If White Light Is Incident on a Diffraction Grating

question 13

Multiple Choice

If white light is incident on a diffraction grating:

• A)the first order lines for all visible wavelengths occur at smaller diffraction angles than any of the second order lines
• B)some first order lines overlap the second order lines if the ruling separation is small but do not if it is large
• C)some first order lines overlap second order lines if the ruling separation is large but do not if it is small
• D)some first order lines overlap second order lines no matter what the ruling separation
• E)first and second order lines have the same range of diffraction angles

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Definitions:

Precognition

The purported ability to foresee or have knowledge of future events before they occur.

Clairvoyance

The purported power to gather data about an object, a person, a location, or a physical happening through the use of extrasensory perception, bypassing traditional sensory channels.

Telepathy

The supposed communication of thoughts or ideas by means other than the known senses.

Psychokinesis

The purported skill to shift items solely through mental concentration.