The diagram shows a graph of the sound wave given out by a tuning fork. Trace it on a graph paper and draw graphs to show:
1. Louder sound of the same pitch.
2. Sound of the same loudness but greater pitch
3. Sound that is louder and also has greater pitch

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Solution

(1) Louder sound of the same pitch:

(2) Sound of the same loudness but greater pitch:

(3) The sound that is louder and also has a greater pitch:

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Question 2
A key of a mechanical piano struck gently and then struck again but much harder this time. In the second case

(a) sound will be louder but pitch will not be different
(b) sound will be louder and pitch will also be higher
(c) sound will be louder but pitch will be lower
(d) both loudness and pitch will remain unaffected

(a) Explain the term 'pitch' of a sound. On what factor does the 'pitch' of a sound depend ?

(b) Draw labelled diagrams to represent sound of (a) low pitch, and (b) high pitch, of the same loudness.

Q. Figure X shows a trace of a sound wave produced by a particular tuning fork :

figure

(a) On the graph paper given in Figure Y, draw a trace of the sound wave which has a higher frequency than that shown in figure X.
(b) On the graph paper show in Figure Z, draw a trace of the sound wave which has a larger amplitude than that shown in Figure X.

Draw a diagram to show the wave pattem of high pitch note and a low pitch note, but of the same loudness.

Q. helps to distinguish the sound waves having same loudness and same pitch.

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The diagram shows a graph of the sound wave given out by a tuning fork. Trace it on a graph paper and draw graphs to show: 1. Louder sound of the same pitch. 2. Sound of the same loudness but greater pitch ​3. Sound that is louder and also has greater pitch

(1) Louder sound of the same pitch: (2) Sound of the same loudness but greater pitch: (3) The sound that is louder and also has a greater pitch:

The diagram shows a graph of the sound wave given out by a tuning fork. Trace it on a graph paper and draw graphs to show:
1. Louder sound of the same pitch.
2. Sound of the same loudness but greater pitch
3. Sound that is louder and also has greater pitch

(1) Louder sound of the same pitch:

(2) Sound of the same loudness but greater pitch:

(3) The sound that is louder and also has a greater pitch: