Diffraction of light from a single slit and on a wire

[heelp]

What is the standard Diameter for the wire. This one is from my lab of diffraction of a light from a single slit and on a wire.


Thanks in advance for your help.

 

[Chi Meson]

There is no standard. It could be any diameter from 1/10th of a millimeter to a full centimeter and still be called a "wire."

 

[src2206]

Generally thinner the wire better is the effect- though mathematically it is related directly with thw wave length of incident EMW. The diameter must be small w.r.t the wave length otherwise you will not be able to see the phenomenon.
Regards
SRC