p35_030 - f = 1 i + 1 p 1 = 1 d/ 3 + 1 2 d/ 3 1 = 2 d 9 =...

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30. (a) A convex (converging) lens, since a real image is formed. (b) Since i = d p and i/p =1 / 2, p = 2 d 3 = 2(40 . 0cm) 3 =26 . 7cm . (c) The focal length is
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Unformatted text preview: f = 1 i + 1 p 1 = 1 d/ 3 + 1 2 d/ 3 1 = 2 d 9 = 2(40 . 0 cm) 9 = 8 . 89 cm ....
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