two children are right opposite ends of an aluminium rod one strikes the end of the rod with stone find the ratio of times taken by the sound wave in air and Aluminium to reach the second child.
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Answered by
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Step-by-step explanation:
speed of sound in air = 346m/s
speed of sound in aluminium rod = 6420m/s
let the length of the rod be x
we know,
time = distance/speed
time taken in air = x/346
time taken in aluminium rod = x/6420
ratio =(x/346)/(x/6420)
= x/346 * 6420/x [reciprocal]
x would get cancelled
= 6420/346
after cancelling
= 18.55
Answered by
5
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