Physics, asked by tanishapawar, 1 year ago

define echo state the two conditions for an echo to be heard​

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Answered by dnyaneshsp44
6

The two conditions for echo to be heard are:1. The minimum distance between source and reflecting surface should be 17.2 m .2. To hear a distinct echo, the interval between original and reflected sound must 0.1 second.Bats cannot see still they catch their prey as they produce ultrasound

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