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Class XI Physics Quiz: System of Particles and Rotational Motion
Class XI
Physics
System of Particles and Rotational Motion
12 questions
HARD
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Preview questions
1. What is the condition for an object to be in translational equilibrium?
Net force is zero · Net torque is zero · Both net force and torque are zero · Only gravitational force is acting
2. The moment of inertia of a point mass 'm' at a distance 'r' from the axis of rotation is given by:
mr^2 · m/r^2 · m/r · r/m
3. Which of the following quantities is conserved in a closed system of particles?
Momentum · Energy · Angular momentum · All of the above
4. The angular momentum of a particle moving in a circle of radius 'r' with linear momentum 'p' is given by:
pr · p/r · r/p · p^2/r
5. For a rigid body in rotational motion, the relationship between torque (τ) and angular acceleration (α) is given by:
τ = Iα · τ = mα · τ = rF · τ = F/I
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