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Physics · SYSTEMS OF PARTICLES AND ROTATIONAL MOTION
हिन्दीMatch List-I with List-II: List-I (Physical Situation) List-II (Equilibrium Condition / Outcome) A Equal parallel forces acting in same direction at rod ends I Translational equilibrium but not rotational equilibrium B Equal and opposite forces acting along different lines of action II Total gravitational torque is zero C Mechanical advantage of a lever greater than 1 III Rotational equilibrium about midpoint but not translational D Centre of gravity of an extended body IV Effort arm is greater than load arm Choose the correct answer from the options given below:
Match List-I with List-II:
| List-I (Physical Situation) | List-II (Equilibrium Condition / Outcome) | ||
|---|---|---|---|
| A | Equal parallel forces acting in same direction at rod ends | I | Translational equilibrium but not rotational equilibrium |
| B | Equal and opposite forces acting along different lines of action | II | Total gravitational torque is zero |
| C | Mechanical advantage of a lever greater than 1 | III | Rotational equilibrium about midpoint but not translational |
| D | Centre of gravity of an extended body | IV | Effort arm is greater than load arm |
Choose the correct answer from the options given below:
Correct answer · Option 1
A-(III), B-(I), C-(IV), D-(II)
Explanation
Equal parallel forces in same direction give zero torque about midpoint but net force non-zero: A-(III). Equal and opposite forces with separation (couple) give net force zero but non-zero torque: B-(I). M.A. > 1 means effort arm > load arm: C-(IV). Centre of gravity is the point where total gravitational torque is zero: D-(II).
