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A point object is placed at distance of 26 m from convex lens of focal length 20cm if a glass slab of thickness t and refractive index 1.5 is inserted between the lens and the object the image is formed at Infinity the thickness t is |
| Answer» A point object is placed at distance of 26 m from convex lens of focal length 20cm if a glass slab of thickness t and refractive index 1.5 is inserted between the lens and the object the image is formed at Infinity the thickness t is | |