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A Person Standing Between Two Vertical Cliffs Produces a Sound. Two Successive Echoes Are Heard at 4 S and 6 S. Calculate the Distance Between the Cliffs. - Physics

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Question

A person standing between two vertical cliffs produces a sound. Two successive echoes are heard at 4 s and 6 s. Calculate the distance between the cliffs.
Numerical

Solution

LetA1 andA2 be the distances of the two cliffs from the man. then
2 A1 =320 x 4=1280 ............ (i)
and, 2 A2 = 320 x 6 = 1920 .............. (ii)
Adding (i) and (ii)
2 ( A1 +A2) = 3200
or, A1 +A2 = 1600m
`therefore` distance between the two cliffs= 1600 m

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Chapter 3: Sound - Exercise 3.1 ii [Page 136]

APPEARS IN

Frank Physics - Part 2 [English] Class 10 ICSE
Chapter 3 Sound
Exercise 3.1 ii | Q 33 | Page 136

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