The south-seeking It lies on the surface of the mirror. The incident ray reflected ray and normal to the point of reflection lies in the same plane. A bar magnet suspended in Earth’s magnetic field orients itself in a north–south direction. Incident rays - at least two - are drawn along with their corresponding reflected rays. Normal: The normal at any point of the spherical mirror is the straight line obtained by joining that point with the centre of the mirror. Laws of Reflection of Light: The angle of reflection and incidence are equal. Principal axis: It is the straight line joining the pole of the mirror to its centre of curvature. The distance of the principal focus from the pole is called the focal length (f). The distance from the pole … It is related to a football bouncing back after colliding with a wall or any hard surface. The north-seeking pole of such a magnet, or any similar pole, is called a north magnetic pole. 6. Hiii, This is the mirror formula, 1/f=1/v+1/u Where, U=object distance V=image distance and , F= focal length The sphere’s centre is called as centre of curvature. Terms used in mirrors. Pole: The geometric centre of the spherical surface of mirror is called the pole of mirror. Pole – The mid-point of the concave mirror Principal axis – An imaginary line that connects the pole and the center of curvature Focus – A point on the principal axis where rays of light that are parallel to the axis converges after reflection Each ray intersects at the image location and then diverges to the eye of an observer. Locations in front of a spherical mirror (or a plane mirror, for that matter) are assigned positive coordinate values. In the majority of the cases, a concave mirror produces real and inverted images except when the object is placed very near to the mirror i.e. Reflection of light - The rebound of rays of light from an elegant and glossy surface is called reflection or reflection of light. Centre of curvature: The centre of curvature of a mirror is the centre of the sphere of which the mirror is a part. Pole: The centre of the reflecting surface of a spherical mirror. The distance from the pole to the center of curvature is called (no surprise, I hope) the radius of curvature (r). The center of curvature (denoted by C in the figure) of a curved mirror is defined as the center of the hollow glass sphere of which the curved mirror was (previously) a part. Those behind, negative. In a spherical mirror, the distance of the object from its pole is called the object distance (u).The distance of the image from the pole of the mirror is called the image distance (v). pole (p) and the focus … The pole is usually represented by the letter P. Centre of curvature: The reflecting surface of a spherical mirror forms a part of a sphere. Every observer would observe the same image location and every light ray would follow the law of reflection. Magnetic pole, region at each end of a magnet where the external magnetic field is strongest. A ray diagram shows the path of light from an object to mirror to an eye. Principle Axis: The straight line passing through the pole P and the centre of curvature C of the mirror, is called principal axis of the mirror. The pole (denoted by P in the figure) is defined as the geometric center of the curved mirror. There is a relationship between these three quantities given by the mirror formula which is expressed as-