A student wants to project the image of a candle flame on the walls of the school laboratory by using a mirror.
(a) Which type of mirror should he use and why?
(b) At what distance, in terms of focal length 'f' of the mirror, should he place the candle flame to get the magnified image on the wall?
(c) Draw a ray diagram to show the formation of the image in this case.
(d) Can he use this mirror to project a diminished image of the candle flame on the same wall? State 'how' if your answer is 'yes' and 'why not' if your answer is 'no.'
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Answer:
he will use a concave mirror that reflects the posture of the objects
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Concave mirror
Explanation:
a) The student needs a real image, so he should use a Concave mirror.
(b) To get magnified image, the candle should be placed between f and 2f.
(c) Please refer the attached picture for the ray diagram.
(d) Yes, a concave mirror can be used to obtain a diminished image as well. The object should be placed beyond 2f, to get a diminished image. Please refer to the attached picture for the ray diagram.
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