Three Slabs of Different Types of Glass of Uniform Thickness $\degree$

question 33

Multiple Choice

Three slabs of different types of glass of uniform thickness are in contact with one another.The materials have indices of refraction , ,and where and .A beam of light starting in air is incident on the surface of material 1 at an angle of incidence of 35 $\degree$ .The beam continues through material 1,material 2,and material 3,finally emerging into the air again.In which of materials 1,2,or 3,does the beam experience the smallest angle of refraction?

• A)material 1
• B)material 2
• C)material 3
• D)This cannot be answered unless one knows the values of , ,and since the answer depends upon their relative ratios.

Differentiate between elastic, inelastic, and unitary elastic demand based on graphical representations.

Explain the relationship between price changes, consumer expenditure, and total revenue.

Understand the concept of consumer surplus and how it can be affected by price changes.

Discuss income effects and substitution effects in the context of consumer choice.

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Definitions:

Buyers and Sellers

The participants in a market who respectively purchase and offer goods or services for trade.

Substitution Effects

The change in the consumption pattern of goods due to a change in their prices, making consumers replace more expensive items with cheaper alternatives.

Downward-sloping

A descriptor often used for demand curves, indicating that as the price of a good or service decreases, the quantity demanded increases.

Law of Demand

The principle that there is an inverse relationship between the price of a good and the quantity demanded, holding other factors constant.