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March 28, 2017

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A CONVEX LENS PRODUCES O REAL AND INVERTED
IMAGE 2.5 TIMES MAGNIFIED AT A DISTANCE OF 25CM FROM THE LENS.CALCULATE THE FOCAL LENGTH OF THE LENS,

  • physics - ,

    2.5x/25 = x/do
    do=25x/2.5x=10cm
    1/di+1/do=1/f
    1/25 + 1/10 =1/f
    7/50=1/f
    f=50/7=7.14 cm

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