A String Fixed at Both Ends Is Driven by a Tuning

question 30

Multiple Choice

A string fixed at both ends is driven by a tuning fork to produce standing waves.If the tension in the string is increased,

• A)the frequency increases.
• B)the frequency decreases and the wave velocity remains constant.
• C)the wavelength decreases.
• D)the wave velocity increases.
• E)the wave velocity decreases.

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Definitions:

Unemployment Rate

The share of people in the labor force who have no job but are searching for one.

Business Confidence

An economic indicator that measures the degree of optimism or pessimism that business managers feel about the prospects of their companies and the economy as a whole.

Natural Rate

The unchanging rate of unemployment in the economy that occurs due to the frictional and structural factors when the labor market is in equilibrium.

Inflation Rate

The percentage increase in the general level of prices for goods and services in an economy over a period, typically measured annually.