Question Detail

PHY 104 Pitch, loudness, quality, timber Objective Question
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Question

What is the approximate value of the reference intensity (Io) used in decibel calculations?
Options
A 10^-10 W/m²
B 10^-11 W/m²
C 10^-12 W/m²
Correct Answer
D 1 W/m²
Correct Answer

Option C is the correct answer.

Detailed Explanation

The text states, 'Io is about 10-12 W / m².'

Hint

This value represents the threshold of human hearing.

Question Info

Course: PHY 104
Topic: Pitch, loudness, quality, timber
Type: Objective
Difficulty: Not specified
Question 422 of 947
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