What Is the Intensity of a 70-DB Sound? the Threshold

question 119

Multiple Choice

What is the intensity of a 70-dB sound? The threshold of human hearing is 1.0 × 10^-12 W/m².

• A)10^-4 W/m²
• B)10^-5 W/m²
• C)10^-6 W/m²
• D)10^-7 W/m²

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Definitions:

Post-only Design

A research design involving measurements taken only after an intervention, with no pre-test comparison.

Cognitive Variables

Factors related to mental processes of perception, memory, judgment, and reasoning, as affecting learning or behavior.

Reaction Measures

Evaluation tools used to gauge immediate responses or feedback to training or learning activities.

Literature

Written works, especially those considered of superior or lasting artistic merit, encompassing fiction, non-fiction, poetry, and other forms.