Question

An object is placed at the distance of 4cm infront of the convex mirror whose focal length is 5cm where image will be formed

Answer 1

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• Using mirror formula
• $\frac{1}{20} = \frac{1}{v} - \frac{1}{4}$
• $\frac{1}{v} = \frac{1}{20} + \frac{5}{20} = \frac{3}{10}$
• v = 10/3 = 3.34cm