Bright and Dark Fringes Are Seen on a Screen When

question 7

Multiple Choice

Bright and dark fringes are seen on a screen when light from a single source reaches two narrow slits a short distance apart. The number of fringes per unit length on the screen can be halved

• A)if the distance between the slits is changed to .
• B)if the wavelength is changed to .
• C)if the distance between the slits is the wavelength is changed to .
• D)if any of the above occurs.
• E)only if the width of the slits is changed to .

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Definitions:

Neurosis

A class of mental disorders characterized by anxiety, phobias, or other obsessive or compulsive behaviors, not attributed to the disruptions in personality or reality seen in psychosis.

DSM-IV-TR

The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision; a manual published by the American Psychiatric Association that provides criteria for the diagnosis of mental disorders.

Specific Phobias

Intense, irrational fears of specific objects or situations, such as heights, spiders, or flying, that lead to avoidance behavior.

Latin Name

A formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms.