EASY
9th CBSE
IMPORTANT
Earn 100

What is the audible range of the average human ear?

Important Questions on Sound

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?
MEDIUM
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 12 - Sound>Exercises>Q 2
Describe with the help of a diagram, how compressions and rarefactions are produced in the air near a source of sound?
MEDIUM
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 12 - Sound>Exercises>Q 3
Cite an experiment to show that sound needs a material medium for its propagation.
EASY
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 12 - Sound>Exercises>Q 4
Why is sound wave called a longitudinal wave?
EASY
9th CBSE
IMPORTANT
SCIENCE TEXTBOOK FOR CLASS IX>Chapter 12 - Sound>Exercises>Q 5
Which characteristic of the sound helps you to identify your friend by his voice while sitting with others in a dark room?