Advertisements
Advertisements
Question
The unit of loudness is _______.
Options
cm
second
hertz
decibel
Solution
The unit of loudness is decibel.
APPEARS IN
RELATED QUESTIONS
Shrillness of a sound is determined by the ______ of vibration.
State two conditions for an echo to take place
In which units is the loudness of sound measured?
A person is standing at the seashore. An observer on the ship which is anchored in between a vertical cliff and the person on the shore fires a gun. The person on the shore hears two sounds, 2 seconds and 3 seconds after seeing the smoke of the fired gun. If the speed of sound in the air is 320 ms-1 then calculate:
1) the distance between the observer on the ship and the person on the shore.
2) the distance between the cliff and the observer on the ship.
The pitch of a flute is decreased by ................... length of air column.
Name three characteristics of a musical sound.
Two identical guitars are played by two persons to give notes of the same loudness and pitch. Will they differ in quality? Give reason for your answer.
Two waves have frequencies 256 Hz and 512 Hz, but same amplitude. Compare their (i) loudness, and (ii) pitch
How does frequency affect a musical sound?
Name the factors which determine the loudness of a note.
