A point. object is placed on the principal axis of a concave mirror quite far away from the pole and is moved at a constant speed towards the pole . it is found that the object and image cross each other at a point p which is at a distance of 20 cm from the pole
a) find the focal length of the mirror
b)what is the magnification of image formed when object and image cross each other.
c) what what will be the position of the image when the object reaches at focus of mirror.
d) what will be the nature of image after it crosses the focus of mirror .
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pole
a) find the focal length of the mirror
b)what is the magnification of image formed when object and we will get that. ok bye
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