(i) The image size decreases.
(ii) When m = I, image size = object size, hence u = 40 cm.
(iii) u = 25cm, m = 3.5 and since m = $\frac{v}{u}$
v = 25 x 3.5 = 87.5 cm.
johnmulu answered the question on June 2, 2017 at 05:24
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