in themirror OB, making sixaltogether. If the two mirrors wereat right angles as in Figure 27 each series would contain Fig. 27. two images but the second images of each series would coincide ; this is shewn in Figure27 at P,Q2. (d) To trace the rays by which the various images formedby two plane… … 30-31] THE REFLEXION OF LIGHT.
Heat · Light
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