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प्रश्न
State the position of object for which the image formed by a concave mirror is of same size.
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उत्तर
If the object is placed at the centre of curvature of a concave mirror, the image formed is of same size.
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संबंधित प्रश्न
Image formed by a convex ______ is always virtual and smaller in size.
When a spherical mirror is held towards the sun and its sharp image is formed on a piece of a carbon paper for some time, a hole is burnt in the carbon paper.
What is the advantage of using a carbon paper rather than a white paper?
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.
Mention the types of mirrors used as (i) rear view mirrors, (ii) shaving mirrors. List two reasons to justify your answers in each case.
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:
Which mirror is used in periscope?
Define the following term:
convex mirror
Complete the following diagrams shown in the following figures by drawing the reflected rays.
What is the focal length (f) of a mirror?
