Question

We can hear someone around the corner before you see them because of diffraction. Explain how this happens.
Group of answer choices

Sound waves slow down as they rub against the wall.

Sound waves are absorbed by the wall.

Sound waves bend and spread out as they go around the corner.

Sound waves bounce off the wall and go around the corner.

Answer 1

Answer:

It happens due to diffraction . Diffraction is a phenomenon of bending of a wave on corners , having size of the order of wavelength of the wave . When two people talk , walking around the corner , sound is diffracted by corner and we able to hear it .

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