Check sibling questions

Question 2 Page 170 - Chapter 12 Class 9 - Sound

Last updated at May 29, 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.

Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class

Book a free demo
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