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Questions  >>  JEEMAIN and NEET  >>  Physics  >>  Class11  >>  Oscillations
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Q)

If the per of human ear is 0.4 s and the minimum distance for an echo is 50 m . Then find the speed of sound in the medium

$(a)\;125\;m/s\qquad(b)\;300\;m/s\qquad(c)\;250\;m/s\qquad(d)\;None\;of\;these$

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