Science, asked by sonykaur412, 5 months ago

state the condition to required to hear​

Answers

Answered by shruti2020j
3

Answer:

30 hz...................

Answered by Ralpha
3

(i) The time interval between source sound and reflected sound must be atleast 0.1s. (ii) The minimum distance between the obstacle and source of sound should be atleast 17.2 m

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