EASY
9th CBSE
IMPORTANT
Earn 100

Give an example for production of transverse wave.

Important Questions on Sound

MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 12 - Sound>Check Point 01>Q 5
How density of particles of compression and rarefaction of a wave different from each other?
EASY
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 12 - Sound>Check Point 02>Q 1

Wave of frequency 200 Hz is produced in a string as shown in the figure. Find amplitude, wavelength and velocity of the wave.

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MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 12 - Sound>Check Point 02>Q 2
A sound wave has a frequency of 2 kHz and wavelength 35 cm. How long will it take to travel 1.5 km?
EASY
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 12 - Sound>Check Point 02>Q 3
Define decibel and on what factor does it depend?
EASY
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 12 - Sound>Check Point 02>Q 4
Name the characteristic which helps us to distinguish between a man's voice and woman's voice without seeing them.
EASY
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 12 - Sound>Check Point 02>Q 5
What happens to the speed of sound when it goes from solid to gaseous state?
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 12 - Sound>Check Point 03>Q 1
In an experiment on studying the laws of reflection of sound, if the incident wave makes an angle of 35o with the rigid surface (wall), what will be the angle of reflection?
MEDIUM
9th CBSE
IMPORTANT
All In One SCIENCE CBSE Class IX>Chapter 12 - Sound>Check Point 03>Q 2
What should be the minimum distance of the obstacle from the source of sound for hearing distance echoes?