The lens formula relating the image distance, p , to the focal length, f , and object distance, s , is
The magnification of a lens is
The magnification of the magnifying glass in the previous problem is -3.

Question

The lens formula relating the image distance, p , to the focal length, f , and object distance, s , is  
The magnification of a lens is  
The magnification of the magnifying glass in the previous problem is -3.

Quizplus · Accepted Answer

The magnification of the magnifying glass in the previous problem is not given, so it cannot be determined if it is -3 or not.

The Lens Formula Relating the Image Distance, P , to the Focal