Question Detail

PHY 104 Pitch, loudness, quality, timber Objective Question

Question

What is the standard reference intensity (I₀) mentioned in the text for loudness calculations in decibels?
Options
A 10⁻¹² W/m²
Correct Answer
B 10⁻¹¹ W/m²
C 1 W/m²
D 0 dB
Correct Answer

Option A is the correct answer.

Detailed Explanation

The text states: 'I₀ is about 10⁻¹² W / m²'.

Hint

Locate the sentence that defines the reference intensity (I₀).

Question Info