A uniform thermometre scale is at steady state with its 0 cm mark at 20oC and 100 cm mark at 100oC. Temperature of the 60 cm mark is
A uniform metre scale is kept in equilibrium. It is supported at 60 cm mark and a mass M is suspended at 90 cm mark as shown in the figure. What is the relation between the weight of the scale(W) and the weight of mass(M)?