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9th ICSE
IMPORTANT
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What is the relationship between velocity, frequency and wavelength of a wave?

Important Questions on Sound

HARD
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 9 - Sound>Check Point 1>Q 6
A wave vibrates up and down 5 times in 0.5 s and it covers a distance of 7 m during this interval. Calculate the frequency of the wave. 
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 9 - Sound>Check Point 1>Q 6
A wave vibrates up and down 5 times in 0.5 s and it covers a distance of 7 m during this interval. Calculate the velocity of the wave.
HARD
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 9 - Sound>Check Point 2>Q 1
With the increase in the humidity, does the speed of sound increases or decreases?
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 9 - Sound>Check Point 2>Q 2

Why is lightning seen before thunder?

HARD
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 9 - Sound>Check Point 2>Q 3
What is audible range of sound?
HARD
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 9 - Sound>Check Point 2>Q 4
Which animals generates infrasonic sound?
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 9 - Sound>Check Point 2>Q 5
Which type of frequency is used by bats for catching their prey?
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 9 - Sound>Check Point 2>Q 6
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