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Q. A convex spherical mirror with a radius of curvature of 14.5 cm produces a virtual image one half the size of the real object. Where is the object?

Q. A man and a boy carry a canoe 5.90 m long and weighing 379 N. The canoe is held overhead in a horizontal position. The boy holds one end of the canoe. How far from the opposite end should the man stand so that the boy exerts a force of only 124 N?

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Category:- Physics
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