An elementary handbook of physics

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Blackwood, 1871 - Physics - 389 pages
 

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Page 54 - ... the angle of reflection is always equal to the angle of incidence, the image for any point can be seen only in the reflected ray prolonged.
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Page 292 - ... before incidence. Hence the reflected rays, on being produced back, will meet at a point as far behind the reflector as the point of the object is in front of it.

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