Types of Lens (optics)

Optics

types of optics

Positive Lenses

1. Biconcave- focus lens
2. Positive meniscus
3. Plano-convex

Negative Lenses

1. Biconcave
2. Planoconcave
3. Negative meniscus

What is Laser?

What is laser?

     
Full form of laser

   Laser is  

         Light

   Amplification by

       Stimulated

      Emission  of

                                Radiation.

Only human technology can create laser light.

Lasers are a special form of light. Laser light does not exist in nature.

Application of lasers.