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A convex lens of focal length 10 cm is c...

A convex lens of focal length 10 cm is coaxially placed near a concave lens. The combination forms the image of an object placed, 50 cm away from the convex lens to a point 30 cm away from the concave lens. If the distance between the optical centres of both the lens is 10 cm. calculate the focal length of concave lens.

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AI Generated Solution

To solve the problem step by step, we will use the lens formula and the information provided in the question. ### Step 1: Understand the setup We have a convex lens (F1 = +10 cm) and a concave lens (F2) placed 10 cm apart. An object is placed 50 cm from the convex lens, and the final image is formed 30 cm from the concave lens. ### Step 2: Calculate the image distance for the convex lens Using the lens formula: \[ ...
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