Take a drawing board and fix a white paper with the help of drawing-pins. Draw a straight line MN on it by a pencil. Mark a point O at the center of MN.Draw a perpendicular line OP on MN from point O. Mark the angle like 90°, 80°,70°, ......10°,0° on both side of point O as shown in figure . Place plane mirror parallel to straight line MN with help of  thermocol. Cover the glass of a torch with black coloured drawing sheet which has a slit in it as shown in figure.Switch on the torch and focus the light passing through slit on the mirror in such a way that it appears as a straight line on the paper. Adjust the position of torch in such a way that its light strikes on the plane mirror with an angle of 25 from the normal OP. The light ray reflected back from mirror will also appear on white paper. Put a mark A with pencil on incident light ray. Light ray  AO that comes from torch and strikes the plane mirror is called Incident light ray. Similarly mark a point C on the reflected light ray. This ray of light that comes back after striking the mirror is called Reflected ray(OC).1. Are the Incident angle and the Reflected angle same?2. Write the first law of reflection.3. Write the second law of reflection.