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This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
1. |
One solid sphere ‘A’ and another hollow sphere ‘B’ are of same mass and same outer radii. Their moments of inertia about their diameters are respectively IA and IB, such that _____________ |
A. | IA=IB |
B. | IA is greater thab IB |
C. | IA is lesser than IB |
D. | IA/IB =ρA/ρB |
Answer» D. IA/IB =ρA/ρB | |
2. |
A smooth sphere A is moving on a frictionless horizontal plane with angular speed ω and the centre of mass velocity u. It collides elastically and head on with an identical sphere B at rest. Neglect friction everywhere. After the collision, their angular speeds are ω(A) and ω(B) respectively. Then? |
A. | ωA is lesser than ωB |
B. | ωA=ωB |
C. | ωA=ω |
D. | ωB=ω |
Answer» D. ωB=ω | |