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प्रश्न
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उत्तर
(i) The distance from the pole in the direction of incident ray is taken positive.
(ii) The distance from the pole in the direction opposite to the incident ray is taken negative.
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संबंधित प्रश्न
Find out the letters of English alphabet or any other language known to you in which the image formed in a plane mirror appears exactly like the letter itself. Discuss your findings.
Define the Focal length of a spherical mirror
A ray of light is incident normally on a plane mirror. What will be the:
- angle of incidence?
- angle of reflection?
Write true or false
A virtual image formed by a spherical mirror is always erect and situated behind the mirror.
Name the kind of mirror used to obtain
(a) a real and enlarged image
(b) a virtual and enlarged image
(c) a real and diminished image, and
(d) a virtual and diminished image.
Define the following terms in the context of spherical mirrors :
(i) Pole
(ii) Centre of curvature
(iii) Radius of curvature
(iv) Principal axis
Three mirrors are created from a single sphere. Which of the following - pole, centre of curvature, radius of curvature, principal axis - will be common to them and which will not be common?
Draw a ray diagram to show the formation of image of an object kept in front of a convex mirror. State three characteristics of the image.
The focal length of a concave mirror is 10 cm. Find its radius of curvature.
Name the two types of spherical mirrors.
