Accepted Answer
The magnification of the camera is 0.075.What is magnification?The magnification is the ratio of the image distance and the object distance.Magnification = image distance / object distance Given is the image formed behind lens v=3.0cm and the tree distance u =40 cm Left of the lens is taken negative and its right is taken positive.So, M = - v/uSubstitute the value, we getM = -3/(-40)M = 0.075thus, the magnification is 0.075Learn more about magnification.https://brainly.com/question/21370207#SPJ2