Question

Which of the following are concave mirrors and which convex mirrors?
Shaving mirrors, Car headlight mirror, Searchlight mirror, Driving mirror, Dentist's inspection mirror, Touch mirror, Staircase mirror in a double-decker bus, Make-up mirror, Solar furnace mirror, Satellite TV dish, Shop security mirror.

Answer 1

Shaving mirror, dentist inspection, driving mirror, stair case mirror, make up mirror, satellite shop security mirror are all convex mirror and all other are concave mirror



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Answer 2

Following mirrors are the concave mirrors: Shaving mirror, Card headlight mirror, Searchlight mirror, Dentist’s inspection mirror, torch mirror, make-up mirror, solar furnace mirror and satellite TV dish.

Following are the convex mirrors: Driving mirror, staircase mirror in a double-decker bus and shop security mirror.

Explanation:

• When the hollow sphere is cut into parts, the inner surface becomes the reflecting surface when the outer part is coated.
• This type of mirror is called concave mirror. Examples are Shaving mirror, Card headlight mirror, Searchlight mirror, Dentist’s inspection mirror, torch mirror, make-up mirror, solar furnace mirror and satellite TV dish.
• When the other part of the sphere is coated inside and the outer surface becomes the reflecting surface, this type of mirror is called convex mirror. Examples are Driving mirror, staircase mirror in a double-decker bus and shop security mirror.