In free space, an electromagnetic wave of $3\mathrm{GHz}$ frequency strikes over the edge of an object of size $\frac{\lambda }{100}$, where $\lambda$ is the wavelength of the wave in free space. The phenomenon, which
happens there will be:

For reflection size of obstacle must be much larger than wavelength, and for diffraction size should be order of wavelength.

Since the object is of size $\frac{\lambda }{100}$ much smaller than wavelength, so scattering will occur.