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What are the conditions necessary for …

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What are the conditions necessary for the formation of an echo.

    • Posted by Vishok Kumar 7 years, 3 months ago

    CBSE > Class 09 > Science
    • 2 answers

    Aman Barnwal 7 years, 3 months ago

    The conditions necessary ror the formation of an echo :- 1) Distance is 17.2 m 2) Time is 0.1

    0Thank You

    Gaurav Kumar 7 years, 3 months ago

    Distance. 17.2 m or more than it Time ..more than 0.1 sec

    0Thank You

    ANSWER
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