Scan to download the App
E M B I B E
Physical Science Class 9
>
Chapter 12 - Sound
>
Multiple choice questions
>
Q 3
Share
EASY
9th Telangana Board
IMPORTANT
Earn 100
The sounds of frequency less than
20
Hz
are known as
(a)
ultra sounds
(b)
soft sounds
(c)
louder sounds
(d)
infrasonics
50% students
answered this correctly
Check
Important Questions on Sound
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
