The light ray passing from the centre of curvature is perpendicular or normal to the the sphere of which the concave mirror is a part . because the ray from centre to mirror will act as the radius and we know that radius is perpendicular to the tangent at the point of contact. hence angle of incidence = 0 degree , so angle of refraction will also be 0 degree , hence the ray will retrace its path .
Read more: Why_light_ray_retrace_its_path_when_passes_through_centre_of_curvature_of_a_concave_mirror
The line is called the principal axis. It passes through the center of curvature and focus of the mirror.
When light passes through the center of a lens, it travels along the optical axis, where the lens is thinnest. Since this is the region with the least curvature, the light does not bend much as it passes through. The amount of bending depends on the angle at which the light enters the lens, with light entering perpendicularly experiencing minimal bending.
The principal axis of a mirror is an imaginary line that passes through the center of curvature and the vertex of the mirror. Light rays parallel to the principal axis either converge or diverge after reflecting off the mirror.
Because the center of curvature is defined to be in the direction of the normal. remember that a reflecting angle of light, relative to the normal, equals minus the angle of the beam that hit the mirror, relative to the normal. since the center of curviture is in the direction of the normal. A beam going through it would be with an angle of zero, and there for return with an angel of (minus) zero. In other words it comes back in the same direction.
When a ray of light passes through the center of curvature of a concave mirror, it reflects back along the same path because the angle of incidence is equal to the angle of reflection. This is a property of mirrors where the reflected ray follows the law of reflection, resulting in the ray retracing its original path.
The four principal rays of a curved mirror are: the ray parallel to the principal axis that reflects through the focal point after reflection, the ray that passes through the focal point before reflection and becomes parallel to the principal axis after reflection, the ray that passes through the center of curvature and reflects back along the same path, and the ray that strikes the mirror at the center of curvature, reflecting back along the same path.
diameter.The diameterAny cord that passes through the center of a circle is a diameter of that circle.Diameter
Neither secant nor tangent pass through the center of a circle. A secant passes through one point on the circle and the tangent passes through two points on a circle.
A diameter is a segment that passes through the center of a circle and has both endpoints on the circle.
yes a diameter passes through the center of a circle
A chord that passes through the center of a circle is its diameter.
A cord that passes through the center of a circle is a diameter of that circle. And you've probably guessed that this is the largest cord of that circle.