Which picture best demonstrates the phenomenon of diffraction?

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?

What are the dimensions of the cross section that passes through the points a, f, g, and d?