A student wants to project the image of a candle flame on the walls of the school laboratory by using a mirror.

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.'