Red Light Is Viewed Through a Thin Vertical Soap Film $\lambda$

question 10

Multiple Choice

Red light is viewed through a thin vertical soap film.At the third dark area shown, the thickness of the film, in terms of the wavelength $\lambda$ within the film, is:

• A)"\(\lambda\)/4"
• B)"\(\lambda\)/2"
• C)"\(\lambda\)"
• D)"3\(\lambda\)/4"
• E)"5\(\lambda\)/4"

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Definitions:

Cyclical Unemployment

Unemployment attributed to the natural fluctuations in the economy tied to the business cycle, with higher unemployment during recessions and lower during expansions.

Overall Unemployment Rate

The percentage of the labor force that is jobless and actively seeking employment within the total economy.

Unemployment

A condition where individuals who are capable of working and are actively seeking work are unable to find employment.

Discouraged Workers

People who are not actively seeking employment due to believing no jobs are available for them or there are no positions for which they would qualify.