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प्रश्न
Define Radius of curvature of the spherical mirror
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उत्तर
The distance between the centre of curvature and between the centre of curvature and pole. It is measured in meter or cm.
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संबंधित प्रश्न
Define the following term in the context of spherical mirrors:- Principal focus
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.
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°.
What is a spherical mirror?
Complete the following diagrams shown in Fig. by drawing the reflected ray for each of the incident ray A and B.
Does the mirror mentioned in part (b) form real image for all locations of the object?
State the kind of mirror used
(a) By a dentist,
(b) As a search-light reflector.
Draw a ray diagram in each of the following cases to show the formation of image, when the object is placed :
(i) between the optical centre and principal focus of a convex lens.
(ii) anywhere in front of a concave lens.
(iii) at 2F of a convex lens.
State the signs and values of magnifications in the above-mentioned cases (i) and (ii).
Select the correct option:
A mirror forms a virtual image (diminished) of an object, whatever be the position of object:
Define the term Centre of curvature.
An object 10 cm high is placed at a distance of 20 cm in front of a spherical mirror of focal length 25 cm. By scale drawing find the nature, position, and magnification of the image in the following case:
Concave mirror
An object 10 cm high is placed at a distance of 20 cm in front of a spherical mirror of focal length 25 cm. By scale drawing find the nature, position, and magnification of the image in the following case:
Convex mirror
The diagram below shows the parallel rays incident on a convex mirror. C is the centre of the curvature of the mirror. By drawing the paths of the reflected rays, label the focus F and hence find the focal length of the mirror.
A student traces the path of a ray of light passing through a rectangular slab.
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For measuring the angle of incidence, he must position the protractor in the manner shown in the figure:
An object is placed at a distance of 0.25 m
in front of a plane mirror. The distance between the object and image will be ______.
What is the difference between virtual images of an object formed by a concave mirror and a convex mirror?
