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 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 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.
If the sum of the focal length and radius of curvature is 30cm for a spherical mirror, then the focal length is half of this sum, which would be 15cm.
By increasing its radius of curvature to infinity.
In a concave mirror, the radius of curvature is twice the focal length.
Its radius of curvature and its reflecting property
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The focal length of a concave mirror is about equal to half of its radius of curvature.
There is a specific formula for finding the radius of a curvature, used often when one is measuring a mirror. The formula is: Radius of curvature = R =2*focal length.
The focal length of a concave mirror is half of its radius of curvature. Therefore, for a concave mirror with a radius of 20 cm, the focal length would be 10 cm.
The radius of curvature and the focal length mean the same so the radius of curvature is also 15 cm.
The focal length of a spherical mirror is not affected by the wavelength of light used. It is determined by the mirror's radius of curvature and refractive index of the surrounding medium. The wavelength of light only influences the diffraction effects, not the focal length.