Which of the following statements is correct? (1) All vibrations produce sound. (3) Vibrations o

Name: Problem 23, Chapter 5: Physics Class 7
Uploaded: 2021-06-22T14:07:47-08:00
Duration: 1 min 2 s
Channel: Narayan Hari
Description: Which of the following statements is correct? (1) All vibrations produce sound. (3) Vibrations of frequency more than 20 Hz only produce sound. (4) Vibrations of frequency between 20 Hz and 20,000 Hz only produce sound.

Question

Narayan Hari · Accepted Answer

step 1 As we know that all vibrations produced sound but we can hear only that vibrations which have a

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