the loudness of a lions roar is much greater than a birds chirp.what causes the difference in loudness?????
pls answer fast
The loudness of sound is a measure of the sound energy reaching the ear per second. It depends on the amplitude of vibration of the source producing the sound waves. Since the amplitude of vibration of lion's roar is much higher than the bird's chirp, the loudness of lion's roar is much greater than a bird's chirp. Thus, the amplitude of vibration causes difference in loudness.