Snap & Solve (Physics)
Chapter 22 Geometrical Optic
Here I found ray diagram steps by steps
http://www.physicsclassroom.com/class/refln/Lesson-4/Ray-Diagrams-Convex-Mirrors
Here I found ray diagram steps by steps
http://www.physicsclassroom.com/class/refln/Lesson-4/Ray-Diagrams-Convex-Mirrors