In the given figure, an object is kept on the principal axis of a concave mirror in front of it. Magnification of image is found - 2/3 at this position. Now mirror is shifted towards the object keeping object fixed, by amount 10 cm. At this new position, distance of object from mirror becomes same as the distance of image from the mirror before displacing the mirror.
Physics · Geometrical optics · spherical mirror
In the given figure, an object is kept on the principal axis of a concave mirror in front of it. Magnification of image is found - 2/3 at this position. Now mirror is shifted towards the object keeping object fixed, by amount 10 cm. At this new position, distance of object from mirror becomes same as the distance of image from the mirror before displacing the mirror.
Sub-question 1
Distance of object from mirror before displacing the mirror is
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Sub-question 2
Magnitude of focal length of the mirror is
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Sub-question 3
Magnification at the new position of mirror is
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