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13. Sound
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Q5 of 123 Page 253

What brings the sound of a ringing telephone bell to our ears?

The vibration of our eardrums brings us the sound of a ringing telephone bell.


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3

How does a sound making object differ from one that is silent?

4

Name the part which vibrates to produce sound in the following:

(a) Drums


(b) Sitar


(c) Flute

6

What is the length of vocal cords in a man?

7

Out of a man and a woman:

(a) who has shorter vocal cords?


(b) who produces sound of higher pitch?

Questions · 123
13. Sound
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