Physics, asked by subashchandrappcmz6y, 1 year ago

Calculate the minimum distance in air required from a surface reflecting sound to hear an echo at 20°C

Answers

Answered by vinayakbala32
2

SPEED OF SOUND=330MS⁻¹

TIME IS(MINIMUM TIME TAKEN BY EARS TO PERCEIVE SOUND)=0.1S

2D=330×0.1⇒D≈16.5M

HENCE MINIMUM DISTANCE IS 16.5M

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