A chemist uses a beam balance whose left arm is long while the right arm is long
PHYSICS · Multi-part · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
A chemist uses a beam balance whose left arm is 0.505m long while the right arm is 0.495m long. This defect is unnoticed. A powder sample is placed in the left pan and is balanced by 100g of standard weights in the right pan.
(i) Write the torque balance equation for the situation.
(ii) Calculate the true mass of the powder sample.
(iii) Determine the percentage error in the mass reported by the chemist.