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Question
Geometric centre of the spherical mirror is ______.
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Solution
Geometric centre of the spherical mirror is pole.
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RELATED QUESTIONS
A simple microscope is used by watch repairers. Give reason.
A student focused the Sun rays using an optical device 'X' on a screen S as shown.
From this it may be concluded that the device 'X' is a (select the correct option)
(A) Convex lens of focal length 10 cm.
(B) Convex lens of radius of curvature 20 cm.
(C) Convex lens of focal length 20 cm.
(D) Concave mirror of focal length 20 cm.
The diverging lens in part (a) is replaced by a converging lens also of focal length 100 mm. The object remains in the same position and an image is formed by the converging lens. Compare two properties of this image with those of the image formed by the diverging lens in part (a).
State whether the image in part (a) is real or virtual?
Name the kind of mirror used to obtain:
A virtual and enlarged image
Define the following term:
concave mirror
The boxes in figure (a, b, c) represent mirrors; insert a mirror which will reflect the incident ray as shown in the diagram.
