Discussion
Epidioscope is also known as
Answer: B
The epidiascope is known as an opaque projector. It projects the image of opaque objects, such as pages of a book, pictures and small objects, onto a screen by reflected light, without a transparency.
An overhead projector uses transparencies placed on a stage and a slide projector uses slides. 'Indirect projector' is not a recognised name. So the answer is the opaque projector. The word epidiascope is made from Greek parts meaning to show on top, and the machine shows the surface of the object.
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