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Class 11 Physics — Chapter 7: System of Particles and Rotational Motion
66 practice questions · 22 Easy · 22 Medium · 22 Hard
Free NCERT-aligned multiple-choice practice for Class 11 Physics, Chapter 7 (System of Particles and Rotational Motion). Practise timed Easy, Medium and Hard quizzes with instant explanations — built for CBSE Board exams, JEE Main and NEET UG. Here are a few sample questions; sign in free to practise all 66.
Sample questions
Q1Easy
Centre of mass of a uniform rod is at:
A.One end
B.The geometric centre✓ correct
C.1/3 from one end
D.Outside the rod
Why
Uniform body → COM at geometric centre.
Q2Medium
Moment of inertia of a thin ring about its central axis (mass M, radius R):
A.MR²✓ correct
B.½MR²
C.⅓MR²
D.⅔MR²
Why
All mass at distance R: I = MR².
Q3Hard
Moment of inertia of a solid sphere about diameter:
A.(2/5)MR²✓ correct
B.(2/3)MR²
C.MR²
D.½MR²
Why
I = (2/5)MR² for solid sphere.
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