The Diagram Shows a Single Slit with the Direction to a Point

question 38

Multiple Choice

The diagram shows a single slit with the direction to a point P on a distant screen (not shown) . At P, the pattern has its maximum nearest the central maximum. If X and Y are the edges of the slit, what is the path length difference (PX) - (PY) ?

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

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Definitions:

Highly Elastic

Referring to a situation where the quantity demanded or supplied responds significantly to changes in price.

Demand Curve

A graphical representation of the relationship between the price of a good or service and the quantity demanded by consumers over a period of time.

Consumer Surplus

The difference between the maximum price consumers are willing to pay and the price they actually pay. It is the net gain derived by the buyers of the good.

Cell-Phone Service

A service provided by telecommunications companies that enables mobile phone users to make and receive calls, texts, and use data.