Awave is approaching a barrier that has a small hole at the center. which describes the change in the wave as it encounters the barrier? a. the wave will slow down b. the wave will bend or defract c. the wave will bounce in the opposite direction, or reflact. d. the wave will increase its speed

B.The wave will bend or defract

diffraction is the phenomenon of bending of waves around the edge of the obstruction in its path of motion. this happens more strongly when the dimensions of the slit is comparable with the wavelength of the wavelength undergoing the diffraction process. hence the correct choice would be B

since you're a real machine, your ama is always less than your ima, because you can never totally eliminate friction.

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