Answer:
(a) The front surface of a thick glass mirror is both reflecting and refracting. The back surface is silvered and acts as a mirror. Images are formed by thick glass mirror due to (i) reflection at front surface (ii) reflection at the back surface, the brightest image (iii) multiple reflections within the thickness of glass. Hence a number of images are formed. All these images lie on the normal from the object to the mirror, and shown m Fig. (b) We can see an image, if it is caused by regular reflection. In case of a newspaper, the in homogeneities of the surface cause diffused reflections. So the incident parallel beam is scattered in all directions. Hence no image is seen. (c) Nature exhibits left right symmetry i.e., physical laws are the same for an object and its mirror image. Therefore an outsider, cannot distinguish between the two films. However, the distinction can be made if there is any initial asymmetric information. For example, if it is known that the man is a left-hander, then his image will appear to be a right-hander. And from watching the two films one can tell which is the mirror image film.
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