An object is placed at a distance of 40 cm in front of a convex mirror of radius of curvature 40 cm
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mention the question plz....
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Image size is half of that object so magnification is 1/2
-v/u=1/2
u=-2v
R=40cm so f=R/2=20cm
1/v+1/u=1/f
1/v-1/2v=1/f
1/2v=1/f
f=2v
20=2v
v=+10
hope it helped u...
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