Thin Lenses: A convex lens has focal length f. If an object is placed at a distance of 2 f from the lens on the principal axis, the image is located at a distance from the lens of infinity. between f and 2f. of f. between the lens and f. of 2f.
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Step 1: Use the lens formula \( \frac{1}{f} = \frac{1}{v} + \frac{1}{u} \), where \( f \) is the focal length, \( v \) is the image distance, and \( u \) is the object distance. Show more…
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