Formula of ratio of size of images at two position
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use magnification formula
1. m= hi/ ho
where hi is height of image and ho is height of object
2. for mirrors m= - v/ u
for lenses m= v/ u
where v is distance of image from lens or mirror and u is distance of object from lens or mirror
3. for mirrors
hi/ho=-v/u
for lenses
hi/ho=v/u
1. m= hi/ ho
where hi is height of image and ho is height of object
2. for mirrors m= - v/ u
for lenses m= v/ u
where v is distance of image from lens or mirror and u is distance of object from lens or mirror
3. for mirrors
hi/ho=-v/u
for lenses
hi/ho=v/u
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