JAMB Physics 1982 Question 25

Question 25

Lenses and Optical Instruments

The arrow represents an object in front of a convex lens whose focal points are X and Y (Fig. 4). The image formed is

Diagram for this question
  1. A.between X and P
  2. B.between P and Y
  3. C.between Y and Z
  4. D.outside W
  5. E.outside Z.
Show the answer and explanation

Answer: D (outside W)

Explanation

The object is between the focus X and the lens, so the image is virtual, upright and magnified, on the same side as the object and further from the lens; with the distances drawn it lies beyond W.