MHT CET Physics question
A bob of mass attached to an inextensible string of length is suspended from a vertical support. The bob rotates in a horizontal circle with an angular speed rad/s about the vertical. About the point of suspension [JEE (Main) 2014]
Answer: (C)
Solution
For a conical pendulum the tension passes through the suspension point but the weight has a non-zero torque about it, so is not conserved;
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