Shini talks to us about optical instruments and how they make magnification possible. How do lenses work? How do they form images? Well, in order to understand how optics work, we have to understand ...

The magnification (or power) you will see through a given optical system depends on the telescope and the eyepiece. The simple formula is: Magnification = Focal length of telescope ÷ focal length of ...

Magnification can be worked out from a photograph or drawing using the equation below: The same unit of measurement should be used when making the calculation - metre (m), millimetre (mm) or ...