4. How can you prove experimentally that
the vibrating string?
5. Prove that the pitch of a wind instrument depends on the length of the vibrating air column.
6. Classify percussion instruments on the basis of the pitch produced by them.
7. Differentiate between music and noise. Why is it advisable to listen to music at a moderate
level?
H. The waveforms of some sounds are given below. Answer the questions that followed.
now, Answer the
LOWER AMPLE
"ААААА ААА
th
Fig. 3
Fig. 2
Fig. 1
1. Identify the sounds with same loudness.
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Answer:
Resonance causes a vibrating string to produce a sound with constant frequency, i.e. constant pitch. If the length or tension of the string is correctly adjusted, the sound produced is a musical tone.
The pitch of the note depends upon the length of the tube. A shorter tube produces a higher note, and so holes are covered. Blowing harder makes a louder sound. To produce deep notes woodwind instruments, have to be quite long and therefore the tube is curved.
Explanation:
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