Assertion : Position of image approaches focu | vedclass

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(A) The lens formula is given by $\frac{1}{f} = \frac{1}{v} - \frac{1}{u}$.As the object distance $u$ approaches infinity $(\infty)$,the term $\frac{1

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

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(A) The lens formula is given by $\frac{1}{f} = \frac{1}{v} - \frac{1}{u}$.As the object distance $u$ approaches infinity $(\infty)$,the term $\frac{1}{u}$ approaches $0$.Substituting this into the lens formula,we get $\frac{1}{v} = \frac{1}{f}$,which implies $v = f$.Thus,the image position approaches the focus when the object is at infinity.This is a fundamental property of lenses,and the reason provided correctly explains that rays parallel to the principal axis (which originate from an object at infinity) converge at the focus after refraction.Therefore,both the Assertion and the Reason are correct,and the Reason is the correct explanation of the Assertion.

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

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