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Akhil S.RPhysical science

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We use mainly three types of mirrors

1. Convex mirror 2.Concave mirror 3.Plane mirror

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CONVEX MIRROR

1.They are curved outwards

2. They shows object closer than they appear

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Concave mirror

1.They are curved inwards

2.They shows object wider than they appear

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PLANE MIRROR

Shows the actual & virtual images

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Principal axis

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Focal length of concave mirror

• The focal length of a concave mirror is the distance between its pole and principal focus.

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Images formed by concave mirror

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2. When object is beyond C

The image formed is• between the C & F• Real & inverted• smaller than the object

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3.When the object at C

The image formed is• at the center of curvature • real & inverted• same size as the object

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4. When object is between C & F

The image formed is•Beyond C•Real & inverted•larger than the

Object

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5. When object is at F

The image is•At infinity•Real & inverted•Highly magnified

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6. When object is between P & F

The image is

•Behind the mirror

•Virtual & erect

•Larger than the

object

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Images formed by convex mirror

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1.When object is beyond pole

The image is•Behind the

Mirror between

P & F•Virtual & erect•diminished

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2.When object at infinity

The image is

•Behind the mirror

•Virtual & erect

•Highly diminished

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