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?
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?
- [JEE MAIN 2017]
- A
Left arm is longer than the right arm
- B
Both the arms are of same length
- C
Left arm is shorter than the right arm
- D
Every object that is weighed using this balance appears lighter than its actual weight
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- [AIPMT 2012]