Class XI A dimensionally consistent equation is necessarily correct is not necessarily correct is always correct is nearly correct When two quantities are multiplied or divided, the relative error in the result is the difference of the absolute errors in the multipliers the sum of the absolute errors in the multipliers the difference of the relative errors in the multipliers the sum of the relative errors in the multipliers 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 units of pressure are the same as the units of stress plasticity strain elasticity How many meters does a vehicle moving with a speed of 18 km h−1h−1 covers in 1 s 4.5 5.0 4 6 Do you really want to submit this quiz? Cancel Submit Quiz