What Is the Amplitude of a Gas Element, at 20°C

question 24

Multiple Choice

What is the amplitude of a gas element, at 20°C, when a sound wave of frequency 4 kHz propagates, and the pressure variation is 28 ìP, at the threshold of human hearing?

• A)2.7 × 10^-12 m
• B)1.7 × 10^-11 m
• C)1.7 × 10^-9 m
• D)2.7 × 10^-3 m

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Definitions:

Marginal Product

The increase in output resulting from the addition of one more unit of a certain input, while all other inputs are kept constant.

Units Per Period

A measure of productivity or output over a given time frame, indicating the number of units produced or sold.

Diminishing Marginal Returns

The principle that adding more of one factor of production, while holding others constant, will eventually yield lower additional outputs.

Total Product

The overall quantity of output produced by a firm from a given quantity of inputs.