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12) A convex mirror has a focal length of 18 cm. Tyimage of an object kept in front of the mirrorhalf the height of the object.What is the distance of the object from the min |
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Answer» F=18O=x cm (let)I= x/2 cmwe have,I/O=v/uor, x/2x= v/uv= u/2again,1/f=1/u+1/v1/18= 1/u+2/uu=54cm Ans# |
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