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A Worker Lives at a Distance of 1.32 Km from the Factory. If the Speed of Sound in Air Be 330 M/S, How Much Time Will the Sound of Factory Siren Take to Reach the Worker? - Science

Answer in Brief
Short Note

A worker lives at a distance of 1.32 km from the factory. If the speed of sound in air be 330 m/s, how much time will the sound of factory siren take to reach the worker?

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Solution

We have to calculate the time taken by the sound wave to reach the observer.
Given: Velocity of sound ν = 330 m/s
Distance between the observer and the source d = 1,320 m.
We know, `"Time" = "Distance"/"Speed"`
Therefore , time taken by the sound wave to reach the observer is = `1320/330` s
= 4 s
So , the time taken is 4 s . 

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APPEARS IN

Lakhmir Singh Science Class 9 Physics
Chapter 5 Sound
Long Answers | Q 65.2 | Page 187
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