Question

Noe is studying Wave A and Wave B. Wave A is rated at 100 dB, and Wave B is rated at 90 dB. Which statement can be made about the waves?
Wave A has fewer decibels than Wave B.
Wave A is louder than Wave B.
The intensity of both waves is the same.
The amplitude of both waves is the same.

Answer 1

Answer: B.  Wave A is louder than Wave B.

Explanation: The loudness of sound is measured in unit called decibels (dB).

A decibel unit measures the relative intensity of sounds on a scale from zero to about 100 dB. dB is a measure of intensity, which relates to how much energy the pressure wave has.

Given : Wave A is rated at 100 dB, and Wave B is rated at 90 dB.

Thus we can infer that as wave A has a higher value than wave B, wave A is more louder than wave B.

Answer 2

Answer:

Wave A is louder than wave B

Explanation:

Good luck!!