Explain the following terms.
a. Centre of curvature
b. Focus
c. Focal length
d. Vertex
e. Principal axis
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•(a) Centre of curvature: Centre of curvature of a spherical mirror is the centre of the hollow sphere of a glass of which the mirror is a part.
(a) Centre of curvature: Centre of curvature of a spherical mirror is the centre of the hollow sphere of a glass of which the mirror is a part.(b) Radius of curvature: Radius of curvature of a spherical mirror is the radius of the hollow sphere of glass of which the mirror is a part.
(a) Centre of curvature: Centre of curvature of a spherical mirror is the centre of the hollow sphere of a glass of which the mirror is a part.(b) Radius of curvature: Radius of curvature of a spherical mirror is the radius of the hollow sphere of glass of which the mirror is a part.(c) Pole: The centre of a spherical mirror is called its pole.
(a) Centre of curvature: Centre of curvature of a spherical mirror is the centre of the hollow sphere of a glass of which the mirror is a part.(b) Radius of curvature: Radius of curvature of a spherical mirror is the radius of the hollow sphere of glass of which the mirror is a part.(c) Pole: The centre of a spherical mirror is called its pole.(d) Principal axis: The straight line passing through the centre of curvature and pole of a spherical mirror is called its principal axis.
(a) Centre of curvature: Centre of curvature of a spherical mirror is the centre of the hollow sphere of a glass of which the mirror is a part.(b) Radius of curvature: Radius of curvature of a spherical mirror is the radius of the hollow sphere of glass of which the mirror is a part.(c) Pole: The centre of a spherical mirror is called its pole.(d) Principal axis: The straight line passing through the centre of curvature and pole of a spherical mirror is called its principal axis.(e) Aperture: The portion of a mirror from which the reflection of light actually takes place is called Aperture.
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