The focal length of the conves lense with image distance of 100cm and object distance of 20cm is f = 10cm
Convex Lense
Given Data
- Object Distance u = 20 cm
- Image Distance v = 100 cm
We know that the expression for calculating the Focal lenght is given as
F = (uv)/(u + v) cm
Substittuting the Given Parameter into the expression we have
F = 20*100/20+100
F = 1200/120
F = 10 cm
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