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QJEEM17Phe4cb: JEE Main 2017 Physics - Class 11 JEEM17Phe4cb Solution: In a physical balance working on the principle of moments, when …
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 ?
Multiple Choice Options
- 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.
Step-by-Step Verified Solution
From principle of moment we know, the anticlockwise moment is equal to clockwise moment when a system is stable or balance.
load load arm = effect effect arm
When 5 mg weight is placed on the left pan, load arm shift to left side, hence left arm become shorter than right arm.
load load arm = effect effect arm
When 5 mg weight is placed on the left pan, load arm shift to left side, hence left arm become shorter than right arm.