Question

an object vibrates with a frequency of 15 hertz. which of the following is true​

Answer 1

Answer:

Question is incomplete

Explanation:

let me guess the question;

if frequency is 15Hz then = time period is 1/15 s

Answer 2

Answer:

ANS IS THAT IT PRODUCES THE SOUND THAT WE CANNOT HEAR

Explanation:

BCZ A HUMAN CAN HEAR THE SOUND RANGING B/W 20 Hz - 2000Hz

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