A Long String Is Constructed by Joining the Ends of Two

question 16

Multiple Choice

A long string is constructed by joining the ends of two shorter strings.The tension in the strings is the same but string I has 4 times the linear mass density of string II.When a sinusoidal wave passes from string I to string II:

• A)the frequency decreases by a factor of 4
• B)the frequency decreases by a factor of 2
• C)the wavelength decreases by a factor of 4
• D)the wavelength decreases by a factor of 2
• E)the wavelength increases by a factor of 2

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Definitions:

Economies of Scale

The price benefits that firms enjoy from the magnitude of their operations, where the cost of each output unit generally lessens as the scale of operations increases.

Unit Costs

The financial outlay for a company to manufacture, warehouse, and dispose of one unit of a specific item or service.

Output

Represents the total amount of goods or services produced by a firm or economy in a specific period.

Minimum Efficient Scale

The smallest level of production a firm can achieve while still taking full advantage of economies of scale in terms of cost per unit.