PDF for physics from the official Punjab Board website. Access chapter-wise details for physics with the link to download the ...

The researchers were able to observe the effect of the water droplet’s volume on its optical properties, particularly its power of magnification.

What is a mirror lens exactly? And have they got a new lease of life when used on mirrorless cameras? I've been trying them ...

A plano-concave lens is a lens with one side being flat and the other side being concave. It is characterized by being thin in the center and thick at the edges, and can make parallel light rays ...

That said, some telescopes can artificially increase their magnification by bouncing light off of mirrors before sending it through the objective lens.

Explore the evolution of a groundbreaking scientific instrument that has redefined our understanding of the cosmos - from its inception in 1608 to the cutting-edge gamma-ray telescopes of today.

These are the best Pentax lenses to extend your DSLR system, whether you have an APS-C or full-frame Pentax camera ...

Evidence suggests ancient civilizations, including the Greeks, may have had early optical knowledge and devices like telescopes.

Projection-type holographic displays are three-dimensional (3D) displays that utilize computer holography. These displays consist of a projection lens and a transparent holographic optical element ...

A telescope's power, or magnification, has to do with its lenses. Magnification is determined by the focal length of the telescope divided by the focal length of the eyepiece.