a student focused the image of a candle flame on a white screen using a concave mirror.He noted down the position of the candle ,mirror and screen as follows position of the mirror equals to 10 cm, position of the screen = 30cm ,position of the candle equal to 70cm.
1)what is the nature of the image formed in the above case? 2)what is the focal length of the concave mirror? 3)draw ray diagram to show the formation about case? 4)where will the image be formed if the candle is shifted towards the mirror at a position 40cm
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