Question

solve 8th part......................​

Answer 1

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Since speed of sound in air = 344 m/s

speed of sound in aluminum = 6420 m/s

we know that v = distance/time therefore time

➡ d/v

time taken by sound wave in air/time taken by sound wave in aluminum

➡ d/344

➡ d6420/34

➡ 18.66/1

the sound will take 18.66 times more time through the air than in aluminum in reaching another boy.

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Answer 2

Ans. Since speed of sound in air = 344 m/s

and speed of sound in aluminum = 6420 m/s

we know that v = distance/time therefore time = d/v

time taken by sound wave in air/time taken by sound wave in aluminum

= d/344: d/6420 = 6420/344 = 18.66/1

the sound will take 18.66 times more time throug