GAT PYQ 2024 Mock Test – I – Q78

Question:

For a human eye, where u is the distance of an
object from the eye, f is the focal length of the
lens and v is the distance of image from the eye,
which is the correct schematic graph?

For a human eye, where u is the distance of an
object from the eye, f is the focal length of the
lens and v is the distance of image from the eye,
which is the correct schematic graph?

Options:

  • Graph A
  • Graph B
  • Graph C
  • Graph D
  • Graph A
  • Graph B
  • Graph C
  • Graph D

Correct Answer: C) Graph C

Explanation:

As object distance u increases, image distance v is kept constant at the retina by changing focal length f. So focal length f increases with u.

As object distance u increases, image distance v is kept constant at the retina by changing focal length f. So focal length f increases with u.

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