The greater the decibel dB) level of a sound wave, the
A) higher its frequency is.
B) longer its wavelength is.
C) louder it is.
D) farther away its source is.

Question

Quizplus · Accepted Answer

Decibel level is a measure of the intensity or loudness of a sound wave. Therefore, the greater the decibel level, the louder the sound is. Choice A is incorrect because frequency and decibel level are two separate measures of a sound wave. Choice B is incorrect because wavelength and decibel level are inversely proportional, meaning that as one increases, the other decreases. Choice D is incorrect because the distance of a sound wave's source is not directly related to its decibel level.

The Greater the Decibel DB) Level of a Sound Wave