Verified Solution • 2025–26 Session
moderate
QJEEM20Ph54db: JEE Main 2020 Physics - Class 11 JEEM20Ph54db Solution: Shown in the figure is rigid and uniform one meter long rod AB…
Shown in the figure is rigid and uniform one meter long rod AB held in horizontal position by two strings tied to its ends and attached to the ceiling. The rod is of mass ‘m’ and has another weight of mass 2 m hung at a distance of 75 cm from A. The tension in the string at A is :
Multiple Choice Options
- A 0.5 mg
- B 2 mg
- C 0.75 mg
- D 1 mg
Step-by-Step Verified Solution
B = 0 (torque about point B is zero)
(T A) × 100 – (mg) × 50 – (2mg) × 25 = 0
100T A = 100 mg
TA = 1 mg