16.2 Mirrors
Plane Mirror
The reflected rays PR and QS diverge from each other, therefore,
they are extended backwards to meet at I, the image I is therefore the virtual
image behind the mirror. From the geometry of the ray diagram, it is obvious
that v = u. The image of a finite sized object in a plane mirror is virtual,
erect, laterally inverted, behind the mirror and at same distance as the object.
These are obvious consequences of the laws of reflection; these characteristics
of the image are illustrated in Fig. 3
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Index
Light
16.1
Laws of Reflection at plane surfaces
16.2 Mirrors
16.3 Laws of Refraction at plane surfaces, Refractive
Index and Critical Angle
16.4 Refraction at curved spherical surfaces and
Lens maker’s formula
16.5 Lenses
16.6 Refraction in Prisms, Prism Formula
16.7 Dispersion of Light, Angular Dispersion and
Dispersive Power
16.8 Optical Instruments and Magnifying Power
Chapter
17
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