CBSE Class 9 Science Question 4 of 33

Sound — Question 4

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Question

Question 4

Which characteristics of the sound helps you to identify your friend by his voice while sitting with others in a dark room?

Answer

Timbre or quality of sound makes it possible to recognize a person by his voice without seeing him. The vibrations produced by the vocal cord of each person have a characteristic wave form which is different for different persons.