Question

define principal focus and radius of curvature of a convex mirror​

Answer 1

Answer:

The radius from the centre of spherical mirror is radius of curvature and...The fixed point is principal axis..

Explanation:

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Answer 2

The definitions of the principal focus and radius of curvature of a convex mirror are as follows:

Convex Mirror

• Principal Focus: The point on the main axis at which the rays parallel to the main axis converge (concave mirror) or meet after reflection (convex mirror). Represented by f.

• Focal length: The distance between the pole and the main focal point of a spherical mirror is called focal length.
• The radius of curvature of convex or concave mirror is twice the focal length of convex or concave mirror.
• Radius of curvature is the radius of a sphere formed by a convex or concave mirror.
• It is equal to the distance between the pole and the center of curvature.
• A convex mirror, or just a curved mirror, is a mirror in which the reflected surface swells towards the light source.
• The surface of a curved mirror can be convex, meaning inflated on the outside, or concave, inflated on the inside.
• A convex mirror reflects light from the outside and is therefore not used to focus on light.