Loading practice questions

A focused practice platform for competitive-exam MCQs, subject wise, topic wise practice, and current affairs revision.

Exams

SSC CGL
UPSC CSE PRELIMS
IBPS PO
RRB NTPC
CDS

Subjects

Mathematics
Physics
General Knowledge
English
Reasoning

Resources

Current Affairs
Search MCQs
Practice Sets

Company

About Us
Contact
Privacy Policy
Terms of Use
Disclaimer
Copyright

Practice library for exams, subjects, and daily revision. For learning purposes only.

© 2026 ObjectiveMcq.ComAll rights reserved

Infrasonic Waves : Class 9 Science MCQ Practice Questions & Answers (Telugu) - ObjectiveMcq

Class 9 Science Practice

Browse

Topics

Agriculture
Biology
Chemistry
Physics
- Circular Motion
- Conservation Of Energy
- Energy Conversion
- Force
- Gravitation
- Laws Of Motion
- Motion
- Potential Energy
- Power
- Sound
- Waves
- Work And Energy
Science

HomePracticeClass 9 SciencePhysicsSoundInfrasonic Waves

Infrasonic Waves in Class 9 Science : Practice MCQ Questions & Answers with Explanations

1 practice sets · Page 1 of 1

Class 9 ScienceMediumPhysics SoundInfrasonic Waves

1.

Which of the following is an example of infrasonic sound?

A

Whale sounds

B

Earthquake tremors

C

Bat communication

D

Human speech

View Answer

Correct Answer: B — Earthquake tremors

Explanation:

Earthquake tremors produce infrasonic waves with frequencies below 20 Hz.