A converging lens forms an image 20 centimetersﾃつﾃつhighof an object that is 5 centimeters high.
part a calculate the magnification factor m of the lens
part b Explain how you can calculate the distance from theobject if you know the lens has a focal length ofﾃつﾃつfcentimeters.
part c If the lens has a focal length of 10 centimeterscalculate the distance to the image if the object is placed at adistance of 25 centimeters from the lens.
part d Indicate if the image formed in part c isﾃつﾃつrealor virtual and if it is upright or inverted.
