zizzybug1543 zizzybug1543
  • 22-05-2023
  • Physics
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It is desired to project the image of an object four times its actual size using a lens of focal length 20 cm. How far from the lens (in cm) should the object be placed? (a) 5 (b) 25 (c) 80 (d) 100 (e) 10

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