Q25 of 223 Page 189

Explain why, concave mirrors are used as shaving mirrors.

Concave mirrors are used as shaving mirrors as when the face is placed close to a concave mirror the concave mirror produces a magnified and erect image of the face so that it becomes easier to make a smooth shave.


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23

Which type of mirror is used in a solar furnace? Support your answer with reason.

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Name the type of mirror used by dentists. How does it help ?

 26

Give two uses of concave mirrors. Explain why you would choose concave mirrors for these uses.

 27

Draw ray-diagrams to show the formation of images when the object is placed in front of a concave mirror (converging mirror):

(i) between its pole and focus


(ii) between its centre of curvature and focus


Describe the nature, size and position of the image formed in each case.