State whether the following statement is true or false:
The minimum distance between a source and the reflector of sound should be $34\, m$.

(B) The statement is False.
For an echo to be heard distinctly,the time interval between the original sound and the reflected sound must be at least $0.1\, s$.
Given the speed of sound in air is approximately $344\, m/s$,the total distance traveled by the sound (to the reflector and back) is given by: $\text{Distance} = \text{Speed} \times \text{Time} = 344\, m/s \times 0.1\, s = 34.4\, m$.
Since the sound travels to the reflector and back,the minimum distance between the source and the reflector is half of the total distance: $34.4\, m / 2 = 17.2\, m$.
Therefore,the minimum distance required is $17.2\, m$,not $34\, m$.