Assuming the speed of sound in air equal to 340 m $s^{- 1}$ and in water equal to 1360 m $s^{- 1}$ , find the time taken to travel a distance 1700 m by sound in (i) air and (ii) water.

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Solution

(i) Distance travelled (D) = 1700
Speed of sound in air (V) = 340 $\frac{m}{s}$
Time taken (t) = D/V = $\frac{1700}{340} s = 5 s$

(ii) Distance travelled (D) = 1700
Speed of sound in water (V’) = 1360 $\frac{m}{s}$
Time taken (t) = $\frac{D}{V}$ = $\frac{1700}{1360} s = 1.25 s$

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Assuming the speed of sound in air equal to 340 m s−1 and in water equal to 1360 m s−1, find the time taken to travel a distance 1700 m by sound in (i) air and (ii) water.

(i) Distance travelled (D) = 1700 Speed of sound in air (V) = 340 ms Time taken (t) = D/V = 1700340s=5s (ii) Distance travelled (D) = 1700 Speed of sound in water (V’) = 1360 ms Time taken (t) = DV = 17001360s=1.25s

Assuming the speed of sound in air equal to 340 m $s^{- 1}$ and in water equal to 1360 m $s^{- 1}$ , find the time taken to travel a distance 1700 m by sound in (i) air and (ii) water.

(i) Distance travelled (D) = 1700
Speed of sound in air (V) = 340 $\frac{m}{s}$
Time taken (t) = D/V = $\frac{1700}{340} s = 5 s$

(ii) Distance travelled (D) = 1700
Speed of sound in water (V’) = 1360 $\frac{m}{s}$
Time taken (t) = $\frac{D}{V}$ = $\frac{1700}{1360} s = 1.25 s$