In a medium sound travels kilometre in 3 seconds and in air travel 3 km in 10 seconds the ratio of wavelength of sound in the two medium is
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Answer:
10:3
Explanation:
3km= 3000m
Speed= distance/time
3000m/10s
300m/s
Distance= speed*time
Distance= 300m/s*3s
900m
3000:900m
10:3 is the answer
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