A thin convex lens and a thin concave lens are kept in conta... — JEE PYQs | Mockzy

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A thin convex lens and a thin concave lens are kept in contact and are co-axial. Which of the following state- ments is correct for this combination of two lenses?

behaves as concave lens if

∣ f_{co n v e x} ∣ < ∣ f_{co n c a v e} ∣

behaves as convex lens if

Focal length of the lens system will change if the po- sitions of two lenses are interchanged

(B) Both (A) and (R) are true but (R) is not the correct explanation of (A) (C)

An object AB is placed 15 cm on the left of a convex lens P of focal length 10 c

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