Question

Sound Wave A has amplitude 5 cm whereas B has amplitude 10 cm. The ratio of their intensity will be:

Pls answer it fast
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Answer 1

Answer:

As defined in physics, the intensity of a wave is proportional to the square of its amplitude (A2 ∝ I). So that means that if we want to emulate the effect of a sound being twice as far away, (1/4 the intensity), we would need to multiply the amplitude by one-half