A convex mirror has its radius of curvature k=20 cm. Find the position of the image of an object placed at a distance of 12 cm from the mirror.
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The situation is shown in ure. Here `u=-12cm and R=+20cm`. We have, `1/u+1/v=2/R` or `1/v=2/R-1/u` = 2/(2cm)-1/(-12cm)=11/(60cm)` `v=60/11cm` The position sign of v shows that the image is formed on the right side of the mirror. It is a virtual image.
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