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Q.

Is it true that the loudness and intensity of sound are the same?


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a

True

b

False 

answer is B.

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Detailed Solution

The above statement is false.
Sound intensity is defined as the amount of sound energy that passes through a unit area each second. The terms "loudness" and "intensity" are sometimes interchangeable but not interchangeable. The response of the ear to sound is measured by loudness. Even if two sounds are of equal intensity, we may recognize one to be louder than the other simply because our ears detect it more effectively. Thus, loudness is a subjective quantity, whereas intensity is an objective quantity.
The correct statement would be that the loudness and intensity of sound are different.
 
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