EASY
8th CBSE
IMPORTANT
Earn 100

What is a decibel? Give some examples of decibel level measurements.

Important Questions on Sound

MEDIUM
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 12 - Sound>EXERCISES>Q C
What is the function of an eardrum in a human ear?
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 12 - Sound>EXERCISES>Q C
Give three examples each of a shrill and a shallow sound.
MEDIUM
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 12 - Sound>EXERCISES>Q C
What do you mean by a sound of frequency 20 Hertz? What will the time period of this sound?
MEDIUM
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 12 - Sound>EXERCISES>Q D
Explain with the help of a diagram of the larynx, the mechanism of human sound production.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 12 - Sound>EXERCISES>Q D
Identify various parts of different musical instruments, which vibrate to produce sound.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 12 - Sound>EXERCISES>Q D
'Sound waves need a medium for propagation'. Explain with the help of a demonstration.
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 12 - Sound>EXERCISES>Q D
What is noise pollution? What are its main causes?
EASY
8th CBSE
IMPORTANT
I Explore 3rd EDITION A Science Textbook 8>Chapter 12 - Sound>EXERCISES>Q D
Suggest some steps to reduce noise pollution in your locality.