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A convex lens of focal 20 cm forms an image at a distance of 40 cm on the other side of the lens. Find the distance of the object from the lens. What is the magnification of the object? [4 MARKS] |
| Answer» A convex lens of focal 20 cm forms an image at a distance of 40 cm on the other side of the lens. Find the distance of the object from the lens. What is the magnification of the object? [4 MARKS] | |