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प्रश्न
Define the term Focus of a concave mirror.
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उत्तर
The focus of a concave mirror is a point on the principal axis of the mirror, where all the rays travelling parallel to the principal axis and close to it after reflection from the mirror converge to that point.
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संबंधित प्रश्न
Name the two types of spherical mirrors. What type of mirror is represented by the:
front side of a shining steel spoon?
What is the relation between the focal length and radius of curvature of a spherical mirror (concave mirror of convex mirror)? Calculate the focal length of a spherical mirror whose radius of curvature is 25 cm.
Define the following terms in the context of spherical mirrors :
(i) Pole
(ii) Centre of curvature
(iii) Radius of curvature
(iv) Principal axis
In each case (a) and (b), draw reflected rays for the given incident rays and mark focus by the symbol F.
How is the focal length of a spherical mirror related to its radius of curvature?
Complete the following diagrams shown in the below figure by drawing the reflected ray for each incident ray.
Name the type of mirror used in the following situation:
Side/rear-view mirror of a vehicle
Support your answer with reason.
The radius of curvature of a spherical mirror is 18 cm. What is the focal length of this mirror?
