Physics, asked by remantkakkar204, 10 months ago

What is the minimum distance (in metres) required to hear an echo?
A) 10 B) 13 C) 17 D) 21

Answers

Answered by yashish11

0

Answer:

c

Explanation:

this is your ans

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Answered by sandujakavya

0

Answer:

it's 17 metre

Explanation:

exact value is 17.2 metre

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