[21]
Is it true that the loudness of a sound is absolute?

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

True

False

answer is B.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

The above statement is False.
Loudness is a measure of the response of our ear to sound. It depends on the intensity, as well as sensitivity, of the ear; therefore, it is not absolute, but it is relative. The loudness of the sound is directly proportional to the square of the amplitude. Therefore, if the sound wave's amplitude is higher, the sound will be louder. The measuring unit of loudness is decibel. A decibel unit expresses the relative intensity of sounds on a scale from zero for the average least perceptible sound to about 100 dB, which is near the level most people find uncomfortably loud.
The correct statement would be that the loudness of a sound is relative.

Watch 3-min video & get full concept clarity