Q. 45.0( 2 Votes )

What is meant by

Answer :

Magnification – magnification is defined as how many times bigger or smaller the image of the object formed by the spherical mirror.


It is defined as the ratio of the height of the image to the height of the object.


Let , height of the object = ho


Height of the image =hi


Then the magnification



Magnification can also be defined as ratio of object distance(u) and the image distance (v)



The sign will be


negative for real image


positive for virtual image


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