MEDIUM
9th CBSE
IMPORTANT
Earn 100

Distinguish between loudness and intensity of sound.

Important Questions on Sound

EASY
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 12 - Sound>Questions>Q 1

In which of the three media, air, water or iron, does sound travel the fastest at a particular temperature?

MEDIUM
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 12 - Sound>Questions>Q 1
An echo returned in 3 s. What is the distance of the reflecting surface from the source, given that the speed of sound is 342 m s-1?
EASY
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 12 - Sound>Questions>Q 1
Why are the ceilings of concert halls curved?
EASY
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 12 - Sound>Questions>Q 1
What is the audible range of the average human ear?
EASY
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 12 - Sound>Questions>Q 2
What is the range of frequencies associated with infrasound?
EASY
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 12 - Sound>Questions>Q 2
What is the range of frequencies associated with ultrasound?
EASY
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 12 - Sound>Questions>Q 1
A submarine emits a sonar pulse, which returns from an underwater cliff in 1.02 s. If the speed of sound in salt water is 1531 m s-1, how far away is the cliff?
EASY
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 12 - Sound>Exercises>Q 1
What is sound and how is it produced?