Question

The minimum distance for the echo to be heard is

a) 40 m

b) 17m

c) 34m

d) 36m​

Answer 1

Explanation:

17 meters

So this means that the minimum distance the obstacle needs to be at to hear an echo is 17 meters. So if the obstacles are closer than 17 meters, we won't hear the echo.

Answer 2

Answer:

B) IS THE CORRECT ✔Answer.

Explanation:

• The minimum distance for the echo to be heard is 17m.

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