Q.

For what position of an object, a real and diminished image is formed by a concave mirror?


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a

At pole

b

Between pole and focus

c

Beyond the centre of curvature

d

Between focus and curvature 

answer is C.

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Detailed Solution

When the position of an object is beyond C, a real and diminished image is formed by a concave mirror.
Question ImageA spherical mirror consists of the shape of a piece cut out of a spherical surface. There are two kinds of spherical mirrors: convex and concave. When a ray of light incidents upon a plane mirror, the light ray gets reflected off the mirror. After reflection, there is a change in the direction of the light rays. The convention used to express the direction of a light ray is to indicate the angle that the light ray makes with a normal line drawn to the surface of the mirror.
   
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