A 40 cm tall trolley is placed at u cm from a mirror. The image formed by the mirror is an upright image with the height of its image is 80 cm. State the type of mirror and Identify the characteristic of the image. Explain your answer. Given the radius of curvature of the mirror is 40 cm, by applying the conventional method, prove that the ratio of image distance, v to object distance, u is 1. Should the object were changed to half the height, explain the changes which will took place for the mentioned characteristics in the above situation. Justify your answer.

A 40 cm tall trolley is placed at u cm from a mirror. The image formed by the mirror is an upright image with the height of its image is 80 cm. State the type of mirror and Identify the characteristic of the image. Explain your answer. Given the radius of curvature of the mirror is 40 cm, by applying the conventional method, prove that the ratio of image distance, v to object distance, u is 1. Should the object were changed to half the height, explain the changes which will took place for the mentioned characteristics in the above situation. Justify your answer.