関連ワード:
distance of convex lens is positive or negative length of convex lens is positive or negative distance of concave lens is positive or negative image distance of convex lens is positive or negative object distance of convex lens is positive or negative focal distance of convex lens is positive or negative object distance of convex lens is positive or negative class 10 image distance of convex lens is positive or negative class 10 real image distance of convex lens is positive or negative length of concave lens is positive or negative
