A Source of Sound Waves Is Placed at the Centre

question 50

Multiple Choice

A source of sound waves is placed at the centre of a very large sound-reflecting wall. The source emits 0.500 W of power. Two metres from the source the intensity in W/m² is:

• A)9.95*10-3.
• B)1.99 * 10-2.
• C)0.313.
• D)0.399.
• E)0.625.

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Definitions:

Main Cable Types

The primary categories of cables used in networking and telecommunications, including coaxial, fiber-optic, and twisted pair.

Business Networks

The collection of individuals, organizations, and resources that come together to conduct business activities and transactions.

Metropolitan Area Network (MAN)

A wide area network (WAN) that links users in a specific geographic area (such as within a city or county).

International Company

A business entity that operates in multiple countries apart from its home country, often involved in exporting and importing goods and services.