Bright and Dark Fringes Are Seen on a Screen When

question 10

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 locations of bright and dark fringes can be interchanged if a thin film is placed in front of one of the slits.The minimum thickness of this film must be:

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Definitions:

Functions

The primary roles or duties performed by a system, organization, or individual to achieve specific objectives.

Ergonomics

The study of the interface between individuals' physiology and the characteristics of the physical work environment.

Information-processing Requirements

The demands placed on systems or individuals for the collection, analysis, and dissemination of data.