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an object is 5cm size placed at 20cm infinate of a concave mirror with focal length 15cm then find image distance and charastictes of image |
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Answer» 1/f =1/v+1/u 1/-15=1/v+1/-20 1/-15+1/20=1/v -4+3/60=1/v -1/60=1/v v=-60 m =h`/h=-v/u =h`/5=-(-60)/-20 =h`=5×60/-20 h`=300/-20 h`=-15 hieght of image is -15 image is real and inverted please follow me |
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