Soal gerak kelas 7

Diverging Lens

Diverging lens which are thinner in the middle than at the edge
Types of diverging lenses

The symbolize of diverging lenses

The part of diverging Lenses

Construction of rays diagram for diverging lenses

1.      A ray parallel to the principle axis is refracted seemed to the second focal point (F2)

2.      A ray proceeds toward the second focal point (F2) is  refracted parallel to the principle axis

3.      A ray passing trough to the center (C) is not deviated

The image formed by a concave lens not depends on the positions of the object

Thin Lens

A lens is a piece of transparent material. Lenses are the most important practical application of refraction. There are many instruments, which use lenses. We use lenses in spectacles, cameras, telescope and microscopes. The human eye also contains lens.
Most lenses made from glass or clear plastic. In terms of structure and function, we can classify into two categories.
1.Converging lens
Converging lenses which are thicker in the middle than at the edge
Types of converging lenses

The symbolize of converging lenses

 The part of Converging Lenses