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JEE Main2009PhysicsRay OpticsActual

In an optics experiment, with the position of the object fixed, a student varies the position of a convex lens and for each position, the screen is adjusted to get a clear image of the object. A graph between the object distance u and the image distance v , from the lens, is plotted using the same scale for the two axes. A straight line passing through the origin and making an angle of 45^ with the x-axis meets the e

Options

  1. A(2 f, 2 f)
  2. B( f 2 , f 2 )
  3. C(f, f)
  4. D(4 f, 4 f)

Correct answer

A. (2 f, 2 f)

Step-by-step solution

It is possible when object kept at centre of curvature. aligned & u=v & u=2 f, v=2 f . aligned

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