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 · 8 Apr · Shift 1
PhysicsSingle correct+4 / -1Question 29 of 90
JEE Main 2017 · 8 Apr · Shift 1, Physics question 29
Answer and worked solution
Official answer: C
The empty pans are equal, so for the beam to balance only with 5 mg on the left, the left pan's weight must have the smaller moment arm: the left arm is shorter than the right.