The Frequency Theory of Pitch Makes Good Sense, but It

question 167

Multiple Choice

The frequency theory of pitch makes good sense, but it has a major problem. What is this problem?

• A)Cells in the organ of Corti do not vibrate.
• B)Frequencies do not penetrate to the cochlea.
• C)The basilar membrane can only respond to sounds above 50 db.
• D)Sensory neurons in the inner ear cannot fire faster than 1000 cycles per second.
• E)Pitch is not really related to frequency.

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Definitions:

Contribution Margin Ratio

The percentage of each sale that exceeds the variable costs of production.

Break-even Point

The level of production or sales at which total revenues equal total expenses, resulting in neither profit nor loss.

Margin of Safety

The difference between actual or projected sales and the break-even point, indicating the cushion a business has before it incurs a loss.

Operating Leverage

A measure of how sensitive net operating income is to a given percentage change in dollar sales.