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16/05/2021 2:08 pm
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Which of the following would you prefer, to read very small letters printed on the pages of a dictionary?
(a) A convex lens of focal length 100 cm
(b) A concave lens of focal length 10 cm
(c) A concave lens of focal length 5 cm
(d) A convex lens of focal length 5 cm
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16/05/2021 2:09 pm
(d) A convex lens of focal length 5 cm