Question Detail

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

What is the decibel increase when the sound intensity increases from 10-1 W/m2 to 1 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

The document calculates this as: L(10-1 → 1 W/m2) = 10log10 (1 / 10-1) = 10log10 (10) = 10 dB. This represents the increase in loudness level, not an absolute loudness.

Hint

The decibel value is calculated from the logarithm of the ratio of the final intensity to the initial intensity.

Question Info

Course: PHY 104
Topic: Pitch, loudness, quality, timber
Type: Objective
Difficulty: Not specified
Question 409 of 947
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