A Layer of Ethyl Alcohol (N = 1 $\degree$ B)88 $\degree$ C)68 $\degree$

question 21

Multiple Choice

A layer of ethyl alcohol (n = 1.361) is on top of water (n = 1.333) .To the nearest degree,at what angle relative to the normal to the interface of the two liquids is light totally reflected?

• A)78\(\degree\)
• B)88\(\degree\)
• C)68\(\degree\)
• D)49\(\degree\)
• E)the critical angle is undefined

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Definitions:

Two-part Tariff

A pricing strategy where the price of a product or service is composed of two parts: a fixed fee plus a variable charge based on usage or consumption.

Consumer Surplus

The difference between the total amount that consumers are willing and able to pay for a good or service and the total amount they actually pay.

Reservation Prices

The maximum price a consumer is willing to pay for a good or service, beyond which they will not purchase it.

Mixed Bundling

Selling two or more goods both as a package and individually.