Question

an object is placed at a distance of 25 cm from a convex lens the magnification of the image is -2 then the image distance is​

Answer 1

Answer:

As magnification is -1 then distance of object and image both will be equal 2f . A convex lens can make real inverted image as magnification is negative. Now object is placed 25 cm - 15 cm = 10 cm at a distance of lens.