. Statement-1 : Position of image approaches focus of a lens, only when object approaches infinity,
Statement-2 : Paraxial rays incident parallel to principal axis intersect at the focus after refraction from lens.

Question

. Statement-1 : Position of image approaches focus of a lens, only when object approaches infinity,

Statement-2 : Paraxial rays incident parallel to principal axis intersect at the focus after refraction from lens.

TestHub · Accepted Answer

Statement-1 is false: the image approaches the focus whenever the incident beam becomes parallel, which can also happen for a virtual object (as in multi-lens systems), not only when a real object approaches infinity. Statement-2 is the true standard property: paraxial rays parallel to the principal axis meet at the focus after refraction. Hence (D).

Physics - Geometrical Optics Question with Solution | TestHub

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