A student wants to project the image of a candle flame on the walls of the school laboratory by using
a mirror.
(i) Which type of mirror should he use and why?
(ii) 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?
(iii) Draw a ray diagram to show the formation of the image in this case.
(iv) 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:
(a) The student should use a Concave mirror because a concave mirror produces real images.
(b) To get magnified image, the student should put the candle flame between fand 2f.
(c) The ray diagram will be as follows:
(d) Yes, concave mirror can be used to obtain a diminished image. When the object is placed beyond 2f, then the image formed will be diminished one.
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Explanation:
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