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One end of a light string 4 m in length is fixed to a point on a smooth wall and the other end fastened to a point on the surface of a smooth sphere of diameter 2.25 m and of weight 100 kg. The reaction between the sphere and the wall of the arrangement made is

102.5 kg
105.5 kg
108.5 kg
110 kg.

Correct Answer: 102.5 kg

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