A 5-mm tall object is placed 2 cm away from a lens, and an ...

-2.2 cm-5.0 mm +2.2 cm +3.3 cm. Answer: c. An object is 4m away from a wall. You are to use a concave mirror to project an image of the object on the wall, with the image 2.25 times the size of the object. What should the radius of curvature of the mirror be? 1.1m. 2.2m. 4.4m. 5.5m. Answer: c (this is a difficult problem for physics 6 students) ................
................