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5. One end of a uniform wire of length L and of weight W is attached rigidly to a point in the roof and a weight is suspended from its lower end. If S is the area of cross-section of the wire, the stress in the wire at a height 3L/4 from its lower end is

(a)   W1/S                                               (b) W1 +(W/4) / S

(c)   W1+(3W/4) / S                             (d)  (W1+W)/S

Answer-c

(9)

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