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प्रश्न
The following figure shows a concave mirror with its pole (P), focus (F), and center of curvature (C). Draw a ray diagram to show the formation of the image of an object AB by the concave mirror.
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उत्तर
A light ray, parallel to the principal axis, coming from a point on object AB is reflected from the surface of the mirror, it passes through the principal focus and the other ray passing through the center of curvature strikes the mirror normally i.e. 90 degrees. Hence it will reflect back. These two reflected rays coincide at a point between F and C, where the image is formed. The image, A'B' is real, inverted, and diminished in size.
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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Principal focus
A concave mirror always forms a real image.
A ray of light is incident normally on a plane mirror. What will be the:
- angle of incidence?
- angle of reflection?
Define the terms focus and focal length of a concave mirror. Draw diagram to illustrate your answer.
What is meant by magnification? Write its expression. What is its sign for the (a) real (b) virtual, image?
State the kind of mirror used
(a) By a dentist,
(b) As a search-light reflector.
An object is placed at 4 cm distance in front of a concave mirror of radius of curvature 24 cm. Find the position of image. Is the image magnified?
Select the correct option:
Looking into a mirror one finds her image diminished, the mirror is:
What do you understand by the term real image?
