In a physical balance working on the principle of moments
PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion
Problem
In a physical balance working on the principle of moments, when 5 mg weight is placed on the left pan, the beam becomes horizontal. Both the empty pans of the balance are of equal mass. Which of the following statements is correct? [Main Online April 8, 2017]
(1) Left arm is longer than the right arm
(2) Both the arms are of same length
(3) Left arm is shorter than the right arm
(4) Every object that is weighed using this balance appears lighter than its actual weight.