| Our
Model J2523 Optical Experiment Case for junior middle school
students is a device |
| to be
used in junior middle school only. It is used mainly to demonstrate
the straight travel |
| of light(hole
image-forming), test the law of reflection of light, the phemomena
of reflection |
| &diffusion
caused by mirror surface and examine the law of refraction of
light. It is a necc- |
| ssary
instrument for junior school students to study geometric optics. |
