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The quietest sound that the ear of a man...

The quietest sound that the ear of a man can delete is known as

A

Acoustic zoning

B

Threshold of hearing

C

Threshold of pain

D

Green muffler

Text Solution

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The correct Answer is:
To solve the question, "The quietest sound that the ear of a man can detect is known as," we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Question**: The question is asking for the term that describes the quietest sound detectable by the human ear. 2. **Evaluate the Options**: The options provided include: - Acoustic zoning - Threshold of hearing - Threshold of pain - Green muffler 3. **Define Each Option**: - **Acoustic Zoning**: This refers to regulations set by governments to control noise levels in certain areas. It does not pertain to the sensitivity of human hearing. - **Threshold of Hearing**: This is the minimum sound level (measured in decibels) that the average human ear can detect. It is defined as 0 decibels. - **Threshold of Pain**: This refers to the sound level at which sound becomes painful to hear, typically around 120-130 decibels, which is much louder than the threshold of hearing. - **Green Muffler**: This is a technique or device used to reduce noise pollution, not a term related to sound detection. 4. **Identify the Correct Answer**: Among the options, the **Threshold of Hearing** is the correct term for the quietest sound that can be detected by the human ear, which is defined as 0 decibels. 5. **Conclusion**: Therefore, the answer to the question is the **Threshold of Hearing**. ### Final Answer: The quietest sound that the ear of a man can detect is known as the **Threshold of Hearing**. ---
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