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Thursday, November 29, 2018

Optics


                 Optics


Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it.

       Magnification


Magnification is the process of enlarging the apparent size, not physical size, of something. This enlargement is quantified by a calculated number also called "magnification". When this number is less than one, it refers to a reduction in size, sometimes called  Magnification.
Example s of Magnification

magnifying glass, which uses a positive (convex) lens to make things look bigger by allowing the user to hold them closer to their eye.


telescope, which uses its large objective lensor primary mirror to create an image of a distant object and then allows the user to examine the image closely with a smaller eyepiece lens, thus making the object look larger.


microscope, which makes a small object appear as a much larger image at a comfortable distance for viewing. A microscope is similar in layout to a telescope except that the object being viewed is close to the objective, which is usually much smaller than the eyepiece.


slide projector, which projects a large image of a small slide on a screen. A photographic enlarger is similar.


                                                              By. R.m

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