Waves from a Radio Station with a Wavelength of 761

question 79

Multiple Choice

Waves from a radio station with a wavelength of 761 m arrive at a home receiver a distance 50 km away from the transmitter by two paths.One is a direct-line path and the second by reflection from a mountain directly behind the receiver.What is the minimum distance between the mountain and receiver such that destructive interference occurs at the location of the listener? Assume no phase change on reflection.

• A) 190 m
• B) 381 m
• C) 571 m
• D) 761 m
• E) ​1522 m

Utilize rounding rules appropriately in the context of currency conversion.

Understand the concept of epidemiological transition and its implications on society.

Recognize the emphasis placed by critical sociologists on power within social structures.

Evaluate the reliability of data sources in the context of social research.

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Definitions:

Tobacco Industry

A sector comprising companies that grow, manufacture, and sell tobacco products.

Equilibrium Price

The market price at which the quantity of goods supplied equals the quantity of goods demanded, leading to market stability.

Positive Externality

A benefit enjoyed by a third-party as a result of an economic transaction they are not directly involved in.

Equilibrium Quantity

The amount of products or services available that matches the amount sought after at the price where supply meets demand.