گزارش بصورت تایپ شده فایل word می باشد. گزارش به زبان انگلیسی است.تعداد صفحات 6 می باشد. Abstract When a corrugated object forms between a curtain and a point of light, a complex shadow consists of bright and dark areas. This effect is easy to see, but a relatively strong spring is essential. A high-intensity lamp that shines from a small hole does well. If you look at the role of the shadow of a pen, under the brightness of a point source, you will see an unusual bright zone on the side. Even a lightweight strip is formed in the middle of this shadow. Take a look at the shadow created by your hand along the sun. Usually the diffraction is not about transparent barriers. However, if you drive at night, while a few drops of rain are sitting on your glass of glass, you will see a bright and dark freeze. ...