In a physical balance working on the principle of moments, when math xmlns=http://www.w3.org/199...

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In a physical balance working on the principle of moments, when math xmlns=http://www.w3.org/1998/Math/MathMLmn5/mnmimg/mi/math 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?
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