A bead of weight w can slide on smooth circular wire in a vertical plane. The bead is attached by a light thread to the highest point of the wire and in equilibrium, the thread is taut and make an angle θ with the vertical then tension of the thread and reaction of the wire on the bead are
(a) T = Wcosθ R = Wtanθ
(b) T = 2Wcosθ R = W
(c) T = W R = Wsinθ
(d) T = Wsinθ R = Wcotθ
