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pls solve it  
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Asked by gpnkumar0 | 04 Feb, 2018, 09:41: PM
answered-by-expert Expert Answer
Image is formed at other side of the lens, hence lens is convex.
Magnification = v/u , where v is the image distance and u is the object distance;
Hence object distance u can be obtained from the above equation 3 = 80/(-u) , u = -80/3 = -26.67 cm
 
(Cartesian sign convention is used, u is negative)
 
candle is placed at 26.67 cm from the lens
Image is real and inverted; lens is convex
Answered by Thiyagarajan K | 05 Feb, 2018, 11:51: AM

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