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प्रश्न
Geometric centre of the spherical mirror is ______.
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उत्तर
Geometric centre of the spherical mirror is pole.
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संबंधित प्रश्न
Explain the following term related to spherical lenses:- principal axis
What is a virtual image?
A ray of light is incident on a plane mirror at an angle of 30°. What is the angle of reflection
Write true or false
A virtual image formed by a spherical mirror is always erect and situated behind the mirror.
State the number of images of an object placed between two mirrors, formed in each case when mirrors are inclined to each other at (a) 90°, and (b) 60°.
Figure shows a concave mirror with its pole at P, focus F and centre of curvature C. Draw ray diagram to show the formation of image of an object OA.
Name the kind of mirror used to obtain:
A virtual and enlarged image
Select the correct option:
Looking into a mirror one finds her image diminished, the mirror is:
The following Figure shows a concave mirror MM' on which a ray of light incident from a point P gets reflected to meet the principle axis at O.
(a) Find, by construction, the position of the centre of curvature of the concave mirror.
(b) Write down the value for the radius of curvature of the mirror.
(c) Calculate the focal length of the mirror.
(d ) Which relation is used in deducing the focal length from the radius of curvature?
