A Beam of Light of Two Different Wavelengths Enters a Pane

question 20

Multiple Choice

A beam of light of two different wavelengths enters a pane of glass 3.00 mm thick at an angle of incidence of 56°.The indices of refraction for the two different colors are 1.514 and 1.528.Because of dispersion,the colored beams,although parallel,are separated by a small distance.How far apart are they?

• A) 0.057 mm
• B) 0.0083 mm
• C) 0.025 mm
• D) 0.014 mm
• E) 0.0062 mm

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Definitions:

Negative Income Tax

A fiscal mechanism where individuals earning below a certain threshold receive supplemental pay from the government instead of paying taxes.

Subsidy

A financial contribution provided by the government or another body to support an industry, business, or individual.

Earned Income Tax Credit

A refundable tax credit for low- to moderate-income working individuals and families, aimed at reducing poverty and encouraging work.

Working Poor

Individuals who are employed but still live below the poverty line due to low wages and inadequate employment benefits.