A convex lens forms a real image three times larger than the size object on a screen. Object and screen are moved until the image becomes twice the size of the object. If the shift of the object is 6 cm (away from the lens), the shift of screen is :

A convex lens forms a real image three times larger than the size obje

1.	A convex lens forms a real image three times larger than the size object on a screen. Object and screen are moved until the image becomes twice the size of the object. If the shift of the object is 6 cm (away from the lens), the shift of screen is :
Answer» A convex lens forms a real image three times larger than the size object on a screen. Object and screen are moved until the image becomes twice the size of the object. If the shift of the object is $6 cm$ (away from the lens), the shift of screen is :

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A convex lens forms a real image three times larger than the size object on a screen. Object and screen are moved until the image becomes twice the size of the object. If the shift of the object is 6 cm (away from the lens), the shift of screen is :

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