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An object ABED is placed in front of a concave mirror beyond centre of curvature C as shown in figure. State the shape of the image.

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a
mAB<1  and  mED<1
b
mAB>1  and  mED<1
c
mAB<1  and  mED>1
d
mAB>1  and  mED>1

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detailed solution

Correct option is A

Object is placed beyond C . Hence, the image will be real and it will lie between C and F. Further u. v are negative. hence the mirror Formula will become1v+1u=1f1v+1u=1f=u−fuf  or  v=f1−f/uNow    uAB>uED∴vAB


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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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