At Normal Incidence,the Minimum Thickness of a Soap Film (N

question 86

Multiple Choice

At normal incidence,the minimum thickness of a soap film (n = 1.33) that causes constructive interference when viewed by reflected light of wavelength 400 nm is

• A)225 nm
• B)200 nm
• C)100 nm
• D)750 nm
• E)570 nm

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Definitions:

Positive Exponents

Indicate how many times a number, the base, is to be multiplied by itself.

Expression

A combination of symbols that represent values or operations in mathematics.

Z

Often represents a variable in mathematics or denotes the set of all integers in number theory.

Evaluate

To calculate the value of an algebraic expression by substituting variables with numerical values.