Here, magnification required = -6, negative sign implies that the image will be inverted.
b)
The right side of the mirror will be taken as positive and the left side will be negative.
In mirror magnification is given by:
m = -v/u, where v = image distance = -6 m; and u = object distance.
So, - 6 = -(-6)/u
u = -1 m
i.e, the object should be at a distance of 1 m from the front of the mirror.
a)
We know, mirror formula:
Substituting values:
So, the focal length of the concave mirror used is -0.857 m
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