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प्रश्न
Explain the following terms :
Pole, Centre of curvature, Radius of curvature, Principal axis. Show them on separate diagrams for each of the concave and convex mirrors.
उत्तर
Pole: “The geometric centre of a spherical mirror is called POLE.”
Concave mirror Convex mirror
“The midpoint of aperture AB of the mirror is called pole.” P is pole of mirror.Centre of curvature: “The centre of a hollow sphere of which the mirror forms a part.” It is represented by the symbol ‘ C ‘
Concave mirror Convex mirror
Radius of curvature: “The radius of a hollow sphere of which the mirror is a part”. It is represented by ‘R’
Concave mirror Convex mirror
Principal axis: “Is a straight line joining the pole of the mirror to its centre of curvature and extended further.”
Concave mirror Convex mirror
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संबंधित प्रश्न
A lens forms a real image 3 cm high of an object 1 cm high. If the separation of object and image is 15 cm, find the focal length of the lens.
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For what position of object, the image formed by a concave mirror is magnified and erect?
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Define the term Centre of curvature.
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Spherical mirrors are one form of ______ mirrors.
