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?
Speed of sound, v = 342 m/s
Time taken by sound to travel from the source to reflecting surface, t = 3/2 = 1.5 s
Distance travelled by sound to reflecting surface from the source = v × t = 342 × 1.5 = 513 m
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Welcome to the NCERT Solutions for Class 9 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 7 , Question 1: An echo returned in 3 s. What is the distance of the reflecting surface from the source, given that ....
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