Question

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Answer 1

F=20cm, U=-30cm V=? using lens formula, 1/F=1/V-1/U,. 1/20=1/V-(-1/30),. 1/20-1/30=1/V,. 1/V=30-20/600 , 1/V= 10/600,. V=60cm magnification =Hi/Ho=V/U. here Ho=5 cm , V=60cm, U=-30cm ,. Hi/5=60/-30 after solving it Hi=10cm