Find out the position of the image of an object situated at A in the plain mirror (given figure).

The image of an object formed by a mirror is real, inverted and is of magnification - 1. If the image is at the distance of 30 cm from the mirror. (i) Where is the object placed ? (ii) Find the position of the image object is now moved 20 cm towards the mirror. (iii) What is the nature of the image obtained ? Justify your answer with the help of ray diagram.

A mirror produces a magnified erect image of an object. The nature of the mirror is

An object AB is kept in front of a concave mirror as shown in the figure. (i) Complete the ray diagram showing the image formation of the object. (ii) How will the position and intensity of the image be affected if the lower half of the mirror's reflecting surface is painted black ?