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Two shafts of the same material are subjected to the same torque. If the first shaft is of solid circular section and the second shaft is of hollow section whose internal diameter is 2/3 of the outside diameter, the ratio of weights of hollow shaft to solid shaft would be

[A].	Less than 0.5	[B].	Between 0.5 to 0.99
[C].	1	[D].	1 to 1.5
[E].	1.5 to 2

Answer: Option B

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