Question Detail

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

Calculate the loudness in decibels (dB) for a sound intensity of 10-11 W/m², given that the reference intensity I0 is 10-12 W/m².
Options
A 1 dB
B 10 dB
Correct Answer
C 100 dB
D 110 dB
Correct Answer

Option B is the correct answer.

Detailed Explanation

Using the formula L = 10log10(I/I0): L = 10log10(10-11 / 10-12) = 10log10(101) = 10 * 1 = 10 dB. This matches the example in the text.

Hint

Remember that log10(10x) = x.

Question Info

Course: PHY 104
Topic: Pitch, loudness, quality, timber
Type: Objective
Difficulty: Not specified
Question 362 of 947
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