Question

when an object is placed at a distance of 90 cm from a convex mirror the magnification produced is 1/3.Where should the object be placed?​

Answer 1

the object is placed in front of mirror...

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Answer 2

Answer:

Explanation:

we have been given the value for magnification and object distance

m=1/3

taking object distance to be, u

1/3=-v/u

1/3=-v/90

-3v=90

v=-30

also image should be in front of mirror as it is a real image .(this can be found out as negative object distances indicate presence of real image)