A Slit of Variable Width Illuminated by Light of Wavelength

question 37

Multiple Choice

A slit of variable width illuminated by light of wavelength λ is widened until the first order diffraction minimum moves out to a distance infinitely far away from the brightest location in the central maximum. In terms of the wavelength, the width of the slit is then

• A)0.
• B) .
• C)λ.
• D) .
• E)2λ.

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Definitions:

Perfectly Competitive Industry

An industry that meets the criteria for perfect competition, meaning it includes many small firms producing identical products and allows for free entry and exit.

Total Surplus

The sum of consumer surplus and producer surplus in a market; it measures the total benefit to society from the production and consumption of goods and services.

AC

Average Cost, which is the total cost of production divided by the quantity of output produced.

Monopolist

A single seller in a market who has significant market power and can influence the price and quantity of goods or services.