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Question
What is a simple microscope or a magnifying glass? Draw a ray diagram to show its function.
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Solution

A convex lens works as a simple microscope or a magnifying glass when an object is kept between its optical centre and the focus. The image of the object so obtained is virtual, upright, and magnified.
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What is a magnifying glass (or a simple microscope)? Draw a ray diagram to show how a convex lens may be used as a magnifying glass. Where should the object be placed? State three characteristics of the image formed.
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(ii) In what respect does the image in (i) above different from the image formed by a concave lens?
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