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