Using What You Learned in Chapter 3, Write an Essay

question 20

Essay

Using what you learned in Chapter 3, write an essay explaining any difficulty in the following piece of reasoning:
"Look, if one television set has one more line of resolution than another, you can't say the first is 'highdefinition TV' and the second one is not. So whether a set has 900 lines or 901 can't make the difference. Neither can the difference between 1800 lines and 1801 lines. In fact, there's no place where you can identify exactly where definition becomes 'high.' So there's no point in talking about high definition, when you get down to it."

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Definitions:

Levorotatory

Relating to a substance that rotates the plane of polarized light to the left.

Optical Activity

The ability of a molecule to rotate plane-polarized light, a property used to distinguish between enantiomers in stereochemistry.

Enantiomers

Molecules that are mirror images of each other but cannot be superimposed upon one another, similar to left and right hands.

Polarimeter Tube

A component of a polarimeter used to measure the rotation of polarized light as it passes through an optically active substance.