Question
An echo repeats two syllables. If the velocity of sound is $330 \mathrm{~ms}^{-1}$, then the distance of the reflecting surface is(a) $66.0 \mathrm{~m}$(b) $33.0 \mathrm{~m}$(c) $99.0 \mathrm{~m}$(d) $16.5 \mathrm{~m}$
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An echo repeats two syllables. If the velocity of sound is 330 m s-1, then the distance of the reflecting surface is (a) 66.0 m (c) 99.0 m (b) 33.0 m (d) 16.5 m
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An echo returned in 3 s. What is the distance of the reflecting surface from the source, given that the speed of sound is 342 m s–1?
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