Which alarm setting has a sound that is 20 times louder than 1 db?

When it comes to measuring sound intensity, the decibel (dB) scale is logarithmic, meaning that an increase of 10 dB represents a tenfold increase in sound intensity. Therefore, when comparing sound levels, it's important to understand that each increase of 10 dB results in a perceived loudness that is significantly greater.

In this case, 1 dB is a very low sound level. To achieve a sound that is 20 times louder than 1 dB, we express this in terms of the dB scale. An increase of 10 dB doubles the perceived loudness, so to find a sound level that is 20 times louder than 1 dB, we would need to increase the dB level significantly.

Calculating this, 10 dB represents twice the sound level of 1 dB, and 20 dB would be four times louder than 1 dB. To find a sound that is about 20 times louder, we actually would be looking at levels around 13 dB (approximately twice as loud as 10 dB), but it's important to remember that in practical applications, we consider the next whole number, which is 20 dB in this context.

Thus