candycaneshake11191 candycaneshake11191 27-02-2024 Physics contestada A screen is kept at a distance 90 cm from an object. The image of the object is formed on the screen of a convex lens at least two different locations separated by 20 cm. The focal length of the lens is a) 10 cm b) 15 cm c) 20 cm d) 25 cm
