MEDIUM
9th ICSE
IMPORTANT
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The phase difference between a particle at first crest and a particle at fourth crest is.

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Important Questions on Sound

MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 9 - Sound>CHALLENGERS>Q 7
40 waves pass through a point in 0.5 s at 0 °C. The distance between one compression and adjacent rarefaction is 8 m. The velocity of the sound wave is.
HARD
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 9 - Sound>CHALLENGERS>Q 8
A tuning fork makes 400 vibrations in two seconds in the air. If the velocity of sound at 00C is 320 ms-1. Then the wavelength of the wave emitted at 270C is, 
HARD
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 9 - Sound>CHALLENGERS>Q 9
The minimum distance between two particles in same phase is 18 cm. If the velocity of the wave is 36 ms-1, then find the time interval after which-the particle undergoes a phase change of π is  
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Physics>Chapter 9 - Sound>CHALLENGERS>Q 10
A sonar device on a submarine sends out a signal and receives an echo 5 s later. The speed of sound in water, if the distance of the object from the submarine is 3625 m, is: