1.

Describe the points to be kept on mind while handlingan overhead Projector?​

Answer»

Answer:

In the overhead projector, the source of the image is a page-sized sheet of transparent plastic film (also known as 'foils') with the image to be projected either printed or hand-written/drawn. These are placed on the glass platen of the projector, which has a LIGHT source below it and a projecting mirror and LENS assembly above it (hence, 'overhead'). They were widely used in education and BUSINESS before the ADVENT of video projectors.

Explanation:

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