MEDIUM
9th Telangana Board
IMPORTANT
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How do echoes in a normal room affect the quality of the sounds that we hear?

Important Questions on Sound

EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Multiple choice questions>Q 1
When can you say that the sound is propagating through a medium?
EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Multiple choice questions>Q 2
The unit for the number of waves produced in a second is
EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Multiple choice questions>Q 3
The sounds of frequency less than 20 Hz are known as
EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Multiple choice questions>Q 4
The sound limit between the frequency of 20 Hz -20000 Hz is called as
EASY
9th Telangana Board
IMPORTANT
Physical Science Class 9>Chapter 12 - Sound>Multiple choice questions>Q 5
The characteristic feature of sound which conveys the sensation of sound to our brain is