Class XI The relative error in a physical quantity raised to the power k is. (k – 1) times the absolute error in the individual quantity (k – 1) times the relative error in the individual quantity k times the absolute error in the individual quantity k times the relative error in the individual quantity The dimensions of a physical quantity are the sum of all the number of base quantities the powers (or exponents) to which the base quantities are raised to represent that quantity the sum of all the number of base quantities the sum of the exponents of base quantities According to the principle of homogeneity of dimensions we can add or subtract any physical quantities we can add or subtract any physical quantities we can add or subtract similar physical quantities we can subtract similar physical quantities The volume of a cube of side 2 cm is equal in m3m3 to 0.008 8.0×10−6 0.0008 0.08 The units of pressure are the same as the units of stress plasticity strain elasticity Do you really want to submit this quiz? Cancel Submit Quiz