The quantities A and B are related by the relation m = A / B, where m is the linear density and A is the force. The dimensions of B are of

Given,  m = AB∴ Dimensions of B=[B]=[A][m]Here, A= force = [MLT-2]and m = linear density = mass per unit length = [M][L]∴ [B]=MLT-2ML-1=L2 T-2Q = m LL= QmThese are same dimensions as that of latent heat.