A cricket ball moving at 30m s−1 shows no observable diffraction when it passes through a doorway 1m wide. Which statement best explains this observation?
a) Its speed is too high for noticeable diffraction to occur.
b) Since the doorway width is much larger than the diameter of the ball, diffraction cannot occur.
c) Its de Broglie wavelength is far smaller than the doorway width.
d) Diffraction occurs only for charged particles.