Assuming That the Wave Speed Varies Little When Sound Waves

question 64

Multiple Choice

Assuming that the wave speed varies little when sound waves are traveling through a material that suddenly changes density by 10%,what percentage of the incident wave intensity is reflected?

• A)< 1%
• B)7.0%
• C)10%
• D)20%
• E)25%

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Definitions:

N

Represents the sample size or the number of observations in a dataset.

Σ Symbol

A mathematical notation that represents the sum of a set of terms, known as the summation symbol.

Sum Of Values

The total obtained by adding together a sequence of numbers, quantities, or items.

Mode

The value that occurs most frequently in a data set.