Q26 of 223 Page 189

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

Uses of concave mirror

(i) Concave mirror are used by dentists. Since the tooth looks much bigger through concave mirror hence it becomes easy to examine the defect in the tooth.


(ii) 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.


More from this chapter

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24

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

 25

Explain why, concave mirrors are used as shaving mirrors.

 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.

 27

State one use of concave mirror based on the formation of image as in case (i) above.