The minimum sound pressure that the human ear can detect is commonly referred to as the threshold of hearing. This threshold is typically around **20 µPa (micropascals)**.

To clarify:

1. **Sound Pressure Level**: The sound pressure is measured in pascals (Pa) or micropascals (µPa).
2. **Threshold of Hearing**: The commonly accepted value for the threshold of hearing in air at 1 kHz frequency is indeed approximately 20 µPa.
3. **Relationship to Other Values**: The other values you mentioned (2 µPa, 200 µPa, and 10 Pa) are significantly above or below the typical threshold of hearing.

Thus, the correct answer to your question is **20 μPa**.

Question

The minimum sound pressure that the human ear can detect is commonly referred to as the threshold of hearing. This threshold is typically around **20 µPa (micropascals)**.

To clarify:

1. **Sound Pressure Level**: The sound pressure is measured in pascals (Pa) or micropascals (µPa). 
2. **Threshold of Hearing**: The commonly accepted value for the threshold of hearing in air at 1 kHz frequency is indeed approximately 20 µPa.
3. **Relationship to Other Values**: The other values you mentioned (2 µPa, 200 µPa, and 10 Pa) are significantly above or below the typical threshold of hearing.

Thus, the correct answer to your question is **20 μPa**.

Knowee AI · Accepted Answer

The minimum sound pressure that the human ear can detect is commonly referred to as the threshold of hearing. This threshold is typically around **20 µPa (micropascals)**.

To clarify:

1. **Sound Pressure Level**: The sound pressure is measured in pascals (Pa) or micropascals (µPa). 
2. **Threshold of Hearing**: The commonly accepted value for the threshold of hearing in air at 1 kHz frequency is indeed approximately 20 µPa.
3. **Relationship to Other Values**: The other values you mentioned (2 µPa, 200 µPa, and 10 Pa) are significantly above or below the typical threshold of hearing.

Thus, the correct answer to your question is **20 μPa**.

The minimum sound pressure that the human ear can detect isans.2 μPa200 μPa10 Pa20 μPa

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The minimum sound pressure that the human ear can detect is

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