Which,if Any,of the Following Conditions Is Not Necessary for the Light

question 74

Multiple Choice

Which,if any,of the following conditions is not necessary for the light waves from two sources to be coherent?

• A)They must have the same frequency.
• B)They must have the same amplitude.
• C)They must have the same wavelength.
• D)They must have a constant phase difference.
• E)All of these conditions are necessary.

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Definitions:

Transformation

A process by which a shape is changed through operations such as rotation, reflection, translation, or resizing, altering its position or size but not its fundamental characteristics.

Composition

In mathematics, the composition of functions refers to the application of one function to the results of another.

Function

A relation or correspondence between two sets in which each element of the first set is paired with exactly one element of the second set, typically described by f(x).

Function

A relation between a set of inputs and allowable outputs, where each input is related to exactly one output.