There is no such expression. The normal to a surface, at a given point is the radius of curvature of the surface, at that point.
Radius of curvature divided by tube diameter. To get the radius of curvature, imaging the bend in the tube is a segment of a circle, the radius of curvature is the radius of that circle.
It is the distance from the centre to all points on the surface of a sphere with a radius of 1 foot.
The radius of curvature of a circle, or an arc of a circle is the same as the radius of the circle.For a curve (other than a circle) the radius of curvature at a given point is obtained by finding a circular arc that best fits the curve around that point. The radius of that arc is the radius of curvature for the curve at that point.The radius of curvature for a straight line is infinite.
Because, to allow for the curvature of the spherical surface, each angle must be slightly larger than its plane-surface equivalent.
The center of curvature of a lens is the point located at a distance equal to the radius of curvature from the center of the lens. It is the point where the principal axis intersects the spherical surface of the lens.
The radius of curvature is the distance from the center of a curved surface or lens to a point on the surface, while the center of curvature is the point at the center of the sphere of which the curved surface is a part. In other words, the radius of curvature is the length of the line segment from the center to the surface, while the center of curvature is the actual point.
A spherometer is a measuring instrument used to determine the curvature, or radius of curvature, of a spherical surface. It consists of three legs resting on the surface being measured, with a central screw that can be adjusted to touch the surface at its center. The principle of operation is based on measuring the change in height of the central leg when the screw is adjusted, allowing calculation of the radius of curvature.
The radius of the sphere of which a lens surface or curved mirror forms a part is called the radius of curvature.
By increasing its radius of curvature to infinity.
Its radius of curvature and its reflecting property
The relation between focal length (f), radius of curvature (R), and the focal point of a spherical mirror can be described by the mirror equation: 1/f = 1/R + 1/R'. The focal length is half the radius of curvature, so f = R/2.
The focal point of a convex mirror lies on the same side as the centre of curvature and is at a distance of half the radius of curvature from the optical centre.
The radius of curvature of a lens is the distance between the center of the lens and its focal point. It is a measure of the curvature of the lens surface. A smaller radius of curvature indicates a more curved lens, while a larger radius indicates a flatter lens.
There is no such expression. The normal to a surface, at a given point is the radius of curvature of the surface, at that point.
The center of curvature of a spherical mirror is the point at the center of the sphere from which the mirror is a part. It is located at a distance equal to the radius of the sphere. The center of curvature is an important point for determining the focal length and the magnification of the mirror.
The lens power increases as the curvature of the lens surface becomes steeper. A lens with a larger radius of curvature will have a lower power, while a lens with a smaller radius of curvature will have a higher power. This relationship is described by the lensmaker's equation, which relates the power of a lens to the refractive index of the lens material and the radii of curvature of its surfaces.