Advertisements
Advertisements
Question
In which units is the loudness of sound measured?
Advertisements
Solution
The loudness of sound is measured in phon.
APPEARS IN
RELATED QUESTIONS
Loudness is determined by the __________ of vibration.
Figure shows two jars A and B containing water up to different heights. Which will produce sound of higher pitch when air is blown on them?

Two musical notes of the same pitch and same loudness are played on two different instruments. Their wave patterns are as shown in figure.

How do they differ in
(a) loudness,
(b) pitch and
(c) quality
Name the characteristic of the sound affected due to a change in its
(a) amplitude (b) waveform (c) frequency.
How is the pitch of sound in a guitar changed if (a) thin wire is used, (b) wire under less tension is used?
The frequencies of notes given by flute, guitar and trumpet are respectively 400 Hz, 200 Hz and 500 Hz. Which one of these has the highest pitch?
It is observed that during march-past we hear a base drum distinctly from a distance compared to the side drums.
(i) Name the characteristics of sound associated with the above obervation.
(ii) Give a reason for the above observation.
Name the factors which determine the pitch of a note.
