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JAMB Physics 2007 Question 6

Question 6

Lenses and Optical Instruments

When an object is placed between the principal focus and the optical centre of a convex lens, it could be used as a

  1. A.reflecting lens.
  2. B.compound microscope.
  3. C.projector.
  4. D.simple microscope.
Show the answer and explanation

Answer: D (simple microscope.)

Explanation

With the object inside the focal length, a convex lens forms an upright, magnified, virtual image: this is a magnifying glass (simple microscope).