When a narrow pencil of light strikes the edge of an obstacle,
it undergoes partial diffraction. The diffracted section is
superposed on the light passing the edge and, due to the coherence
of the two sections of light, interference occurs in the border
area between light and shadow behind the edge.
- Multifunctional light box - All-in-one: Can be used for geometric optics on the table, colour mixing and on an optical bench
- Extension with others sets at anytime, no additional light sources needed, recognition value for students
Is a sharply outlined shadow created when light is incident upon
the edge of a wide obstacle? Direct a narrow pencil of light onto
the edge of an obstacle (half-plane) so that some of the light
shines past the edge, and investigate the border area between light
and shadow behind the obstacle.