They say that in Snell's archive they found an optical scheme, which depicted lens, Real object and its real image. The object and the image are of the same size and shape (but longitudinally inv

Question

They say that in Snell's archive they found an optical scheme, which depicted lens, Real object and its real image. The object and the image are of the same size and shape (but longitudinally inverted), and the longer line of the object lies on the optical axis of the lens.

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Same-size real image at O: ∣ m ∣ = 1 at O ⇒ O is at 2 f - (A) Newton's form with the grid: ( f − a ) ( f + 2 a ) = f 2 ⇒ f 2 + a f − 2 a 2 = f 2 ⇒ f = 2 a - (C) The configuration places the lens on the right-hand side of the object - (B) Real object and real image ⇒ converging lens - (D)

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