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Physics-

General

Easy

Question

A container is filled withwater(µ = 1.33) up to aheightof33.25cm.Aconcavemirrorisplaced15 cm above the water leveland the image of an objectplacedatthebottomisformed25 cmbelow thewater level. Focal length ofthemirroris

15cm
20cm
-18.31cm
10cm

The correct answer is: -18.31cm

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