Two Continuous Waves Having the Same Wavelength and Amplitude Pass

question 26

Multiple Choice

Two continuous waves having the same wavelength and amplitude pass through the same medium. They are aligned crest to crest and trough to trough so that they interfere. The resulting wave has

• A) the same wavelength and the same amplitude.
• B) twice the wavelength and twice the amplitude.
• C) twice the wavelength and the same amplitude (or height) as each of the individual waves.
• D) zero amplitude.
• E) the same wavelength and twice the amplitude.

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Definitions:

Marginal Cost

The financial outlay required to create another unit of a good or service.

Average Total Cost

The total cost of production (fixed plus variable costs) divided by the number of goods produced, essentially the per unit production cost.

Average Variable Cost

The total variable costs (like materials and labor) divided by the quantity of output produced, indicating the cost of producing each unit.

Fixed Capital

Long-term assets used in the production of goods and services, such as buildings, machinery, and equipment.