Question

draw a diagram showing pole,focus & centre of curvature of concave mirror

Answer 1

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Secondary School Physics 5 points

How to draw pole ,center of curvature, radius of curvature , Aperture ,principal axis,focus , focal length and focal plane in concave and convex mirror

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(a) Centre of curvature is the centre of the sphere of which the spherical mirror is a part. (b) Radius of curvature is the linear distance between the pole and the centre of curvature. (c) Pole is the mid point of a spherical mirror. (d) Principal axis is an imaginary line passing through the pole and the centre of curvature of a spherical mirror. (e) Principal focus is a point on the principal axis, where a beam of light, parallel to the principal axis, after reflection, either actually meets (concave) or appears to meet (convex). (f) Focal length is the linear distance between the pole and the principal axis

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Answer 2

Answer:

• Concave mirror - The reflective surface of a concave mirror is curled inward and away from the light source.

• Light is reflected inward to a single focal point via concave mirrors. Contrary to convex mirrors, concave mirrors provide a variety of images based on the object's distance from the mirror.

• Pole - Either of the two sites on Earth where the axis of rotation crosses the surface is referred to as a geographical pole.

• The South Pole is located in Antarctica, while the North Pole is in the Arctic Ocean.

• Focus - After reflecting from a concave mirror, light beams that are parallel to that mirror's major axis converge at a particular spot on that axis. The major focus of the concave mirror is this location.

• Centre of curvature - In geometry, the location of a curve's centre of curvature is determined at a point that is located on the normal vector and spaced apart from the curve by an amount equal to the radius of curvature. If the curvature is zero, it is the point at infinity.

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