(a) Table 1: Calculate the focal length using the Lens equation and complete the table give (Write three digits after the decimal for each value) 1 1 u (cm) (cm1) u v (cm) (cm*1) V f (cm) 15 31 18 23.5 21 20 17.5 16 Mean focal length of the convex lens f: cm (b) Calculate Power of the lens : (Write the answer with the unit in the spaces given) 24 27
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