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An object is placed on the principal axis of a concave mirror at a distance of 1.5 f (f is the focal length). The image will be at,
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a
3 f
b
-3 f
c
1.5 f
d
-1.5 f
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Correct option is B
By mirror formula1v+1u=1f1v−13f2=1−f1v−23f=−1f1v=−1f+23f1v=−3+23fv=−3fSimilar Questions
The distance of a real object from the focus of a convex mirror of radius of curvature ‘a’ is ‘b’. Then the distance of the image from the focus is
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