Advertisements
Advertisements
Question
Explain the following and illustrate your answer by drawing appropriate diagram:
Loudness
Advertisements
Solution
Loudness: Loudness is the property by virtue of which a loud sound can be distinguished from a faint one, both having the same pitch and quality. The loudness of a sound depends on the amplitude (or intensity) of the wave.

Soft and loud notes
APPEARS IN
RELATED QUESTIONS
The lower the frequency of vibration, the higher is the pitch.
Name the factor that determines Quality of the note
Two waves of the same pitch have amplitudes in the ratio 1 : 3 What will be the ratio of their
- loudness,
- pitch?
Name three characteristics of a musical sound.
Explain the following and illustrate your answer by drawing appropriate diagram:
Quality of a musical note.
The same musical note when played on a piano and when played on a flute sounds different.
How is it possible to detect the filling of a pitcher under a tap by hearing its sound at a distance?
The frequency of the stretched string of a fixed length is f when it is plucked in the middle. Where should it be plucked so that string vibrates with frequency (i) 2f, (ii) 3f?
Draw diagrams to show these vibrations and name them.
A 0.6 m long stretched wire is made to vibrate in two different modes as shown in figure
(a)

(b)

(i) If the frequency of the note produced in (b) is n, what is the frequency in case (a)?
(ii) In which case (a) or (b), is the note louder? Give reasons.
(iii) In which case is the pitch higher? Give reason.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
