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प्रश्न
Define the terms pole, principal axis and centre of curvature with reference to a spherical mirror.
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उत्तर
Pole: The geometric centre of the spherical surface of mirror is called the pole of mirror.
Principal axis: It is the straight line joining the pole of the mirror to its centre of curvature.
Centre of curvature: The centre of curvature of a mirror is the centre of the sphere of which the mirror is a part.
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संबंधित प्रश्न
Name the spherical mirror which has:
(a) virtual principal focus.
(b) real principal focus.
State the direction of incident ray which after reflection from a spherical mirror gets reflected along its own path. Give a reason.
Draw separate diagram for the formation of virtual image of an object by a concave mirror.
Write the spherical mirror's formula and explain the meaning of each symbol used in it.
At what distance from a concave mirror of focal length 25 cm should an object be placed so that the size of image is equal to the size of the object.
What is the relationship between the focal length and radius of curvature?
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
If the focal length of a spherical mirror is 10 cm, what is the value of its radius of curvature?
