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Mirror Formula Formal Proof

Which propert...

Question

Which property of concave mirror is utilised in using it as a shaving mirror? [2 Marks]

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Solution

When an object is held between the pole and principal focus of a concave mirror, a virtual, erect and magnified image of the object is formed. This is the property utilized for using it as a shaving mirror. [2 Marks]

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Q. When a concave mirror is used as a shaving mirror, where is the face of a man in relation to the focus of mirror? State the characteristics of the image seen.

Q. Why convex mirror can't be used instead of concave mirror as a shaving mirror? [2 Marks]

Q. (a) Give two circumstances in which a concave mirror can form a magnified image of an object placed in front of it. Illustrate your answer by drawing labelled ray diagrams for both.
(b) Which one of these circumstances enables a concave mirror to be used as a shaving mirror?

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