Check sibling questions

Question 2 Page 170 - Chapter 12 Class 9 - Sound

Last updated at March 16, 2023 by

What is the range of frequencies associated with

(a) Infra-sound?

(b) Ultrasound?

 

Answer 

(a) Infra-sounds have frequencies less than 20 Hz.

(b) Ultrasounds have frequencies more than 20,000 Hz.

Get live Maths 1-on-1 Classs - Class 6 to 12

Book 30 minute class for ₹ 499 ₹ 299
Ask a doubt
Maninder Singh's photo - Co-founder, Teachoo

Made by

Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo