The Total solution for NCERT class 6-12
Let AB be a mild steel wire of length 2L = lm and its cross-section areaA = 0.50 x 10-2 cm2. A mass m = 100 g = 0.1 kg issuspended at mid-point C of wire as shown in figure. Let x be thedepression at mid-point i.e., CD = x