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

Exams

SSC CGL
UPSC CSE
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

© 2026 ObjectiveMCQ. All rights reserved.
Content is for educational purposes only.

ObjectiveMCQ

Print Protected

Printing this content is disabled

This page is protected for print. Use the website to view the content.

SSC CGL 2021 Physics Questions

Browse

SSC CGL 2021

Browse

Years

20251 20238 20223 20213 20203 20191 20181

Subjects

Biology2 Physics1

Topics

HomeExamSSC CGL2021Physics

SSC CGL 2021 Physics Questions

Browse the question list for Physics in SSC CGL 2021.

1 questions · Page 1 of 1

Question 1

What physical quantity is measured in decibels (dB)?

A

A: Frequency

B

B: Sound intensity

C

C: Wavelength

D

D: Speed

SSC CGL2021PhysicsSound

Answer and explanation

Correct Answer: B — B: Sound intensity

Sound intensity (loudness) is measured in decibels.