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प्रश्न
In the following figure shows a concave mirror with its pole (P), focus (F) and centre of curvature (C). Draw a ray diagram to show the formation of the image of an object AB by the concave mirror.
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उत्तर
A light ray, parallel to the principal axis, coming from a point on object AB is reflected from the surface of the mirror, it passes through the principal focus and the other ray striking normally to the mirror reflects back and passes through the center of curvature. These two reflected rays, when produced backward, coincide at a point where the image is formed. The image, A'B' is virtual, erect, and magnified in size.
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संबंधित प्रश्न
A simple microscope is used by watch repairers. Give reason.
Define the following term in the context of spherical mirrors:- Principal axis
Define (a) centre of curvature (b) radius of curvature (c) pole (d) principal axis, and (e) aperture, of a spherical mirror with the help of a labelled diagram
Which are the two convenient rays that are chosen to construct the image by a spherical mirror for a given object? Explain with the help of suitable ray diagrams.
For what position of object, the image formed by a concave mirror is magnified and erect?
Define the following term:
spherical mirror
Define the term principal focus in case of convex mirror. Draw a convex mirror and show its principal focus and focal length clearly.
Define the term Normal.
An object 10 cm high is placed at a distance of 20 cm in front of a spherical mirror of focal length 25 cm. By scale drawing find the nature, position, and magnification of the image in the following case:
Convex mirror
Explain why a ray of light passing through the center of curvature of a concave mirror, gets reflected along with the same pattern.
