Question

The diagram below shows the sound wave produced by a musical instrument.
a) Identify the diagram representing:

i) the loudest sound

ii) the lowest pitch

iii) name the characteristic of sound which determines the loudness
please answer the following question
according to class 9 ​
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its Urjent

Answer 1

Answer:

The vibrations of a body in the absence of any external force on it are called the free vibrations. Eg.: When we strike the keys of a piano, various strings are set into vibration at their natural frequencies

A wire stretched between two fixed supports is plucked exactly in the middle and then released. It executes (neglect the resistance of the medium):

Explanation:

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