g A plano-convex lens creates a lateral magnification of three for an object 10 cm away. If the convex curvature is given by R = 9 cm, what is the index of refraction of the material used to construct the lens?

the second one and the forth one are in the purple because they are opinions and the rest are in the yellow

explanation:

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force