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3 An Oobject of height 4 cm is placed atdistance 15 cm in front of Concave lensepowe - 10 diaopter findsize of image ? |
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Answer» h=4cmu=-15cmd=-10Dh'=? d=1/f. 1/v-1/u=1/fTherefore, d=1/v-1/u - 10=1/v-1/-15 1/v=-1/-15+10 =1/15+10 =1+150/15 =151/15 =10.06cmh'/h=v/uh'/4=151/15/15h'/4=151h'=151×4=604cm |
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