1.

Differentiate in negative, positive and virtual images.

Answer»

Images recorded by photographic camera are obtained by chemical process. These images are real and are called optical. They can be black and white or color. The original image formed is called a negative and from it finally finished positive images is obtained. Whereas the images that are formed and it electronic or digital form are virtual. They are stored as an electronic data and can be seen only with the help of a machine. They can be easily duplicated without the fear of any loss of quality. These images can be attached to an email a transmitted and they can be easily stored on variety of locations such as the hard disk, the USB drive, CD, DVD or in cyberspace etc. An optical image can be easily converted Into an electronic one and stored suitably.



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