Question

Assuming the speed of sound in air and water be 340 ms–1 and 1360 ms–1 respectively. Find the time taken by sound to travel 1700 m in
(i) air
(ii) water

Answer 1

Explanation:

air.

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Answer 2

Sound travels 1700m within 1.25 seconds in water and 5 seconds in air.

Explanation:

Speed of sound in air = 340 ms–1

Speed of sound in water = 1360 ms–1

Distance = 1700 m

Time = Distance / speed

(i) Time (air) = 1700 / 340 = 5 seconds

Sound takes 5 seconds to travel 1700m in air.

(ii) Time (water) = 1700 / 1360 = 1.25 seconds

Sound takes 1.25 seconds to travel 1700m in water.