Answer the following question giving explanations wherever necessary.
If a 15 person musical group has 15 new members, so that its size doubles, will a listner perceive the music created by the. group to ·be twice as loud? Why or why not ?

Explanation

To answer the question of whether a listener will perceive the music created by a musical group that doubles in size (from 15 to 30 members) to be twice as loud, we can follow these steps:

### Step 1: Understand the relationship between intensity and loudness
- Loudness is not directly proportional to the number of sound sources (in this case, the number of musicians). Instead, loudness is related to the intensity of the sound produced.

### Step 2: Define intensity and loudness
- The intensity (I) of sound is the power per unit area and is related to the energy produced by the sound sources. When the number of musicians doubles, the intensity of the sound produced also increases.
- Loudness (B) is measured in decibels (dB) and is calculated using the formula:
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