A Sound Source of Frequency 1000 Hz Moves at 40

question 45

Multiple Choice

A sound source of frequency 1000 Hz moves at 40.0 m/s toward a listener who is at rest.What is the apparent frequency heard by the listener? (speed of sound = 340 m/s)

• A) 853 Hz
• B) 872 Hz
• C) 1130 Hz
• D) 1170 Hz

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Definitions:

Isolated Rural

Referring to rural areas that are geographically distant from urban centers and often characterized by a low population density and limited access to services and infrastructure.

IQ

An abbreviation for Intelligence Quotient, a measure of a person's intellectual abilities in relation to their age group.

Flynn Effect

The observed substantial and long-sustained increase in both fluid and crystallized intelligence test scores measured in many parts of the world over the 20th century.

Intelligence Scores

Quantitative measures obtained through standardized testing intended to assess various aspects of a person's intellectual ability or potential.