n the source of light has a magnitude greaterthan the opaque body. Draw the figure and explain. Visual Angle. — Since light emanates from all points ofa luminous body, it is evident that the rays from any twopoints cross each other in all directions and form an infinitenumber of angles which… … Fig. 58. 88 Elements of Physics. the points of a pair of scissors depends upon the angleformed by the handles, and in like manner the size of theimage formed on the retina of the eye depends upon thevisual angle. Since the visual angle diminishes as the dis-tance from the eye increases, the…
Physics
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