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A round disc of moment of inertia I2 about its axis perpendicular to its plane and passing through its centre is placed over another disc of moment of inertia I1 rotating with an angular velocity ω about the same axis. The final angular velocity of the combination of discs is
  • a)
  • b)
    ω
  • c)
  • d)
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A round disc of moment of inertia I2 about its axis perpendicular to i...
The angular momentum of disc of moment of inertia I1 and rotating about its axis with angular velocity ω is
L1 = I1ω
When a round disc of moment of inertia I2 is placed on first disc, then angular momentum of the combination is
L2 = (I1 + I2) ω'
In the absence of any external torque, angula momentum remains conserved i.e. L1 = L2
I1ω = (I1 + I2)ω,
⇒ 
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A round disc of moment of inertia I2 about its axis perpendicular to its plane and passing through its centre is placed over another disc of moment of inertia I1 rotating with an angular velocity ω about the same axis. The final angular velocity of the combination of discs isa)b)ωc)d)Correct answer is option 'C'. Can you explain this answer?
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A round disc of moment of inertia I2 about its axis perpendicular to its plane and passing through its centre is placed over another disc of moment of inertia I1 rotating with an angular velocity ω about the same axis. The final angular velocity of the combination of discs isa)b)ωc)d)Correct answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A round disc of moment of inertia I2 about its axis perpendicular to its plane and passing through its centre is placed over another disc of moment of inertia I1 rotating with an angular velocity ω about the same axis. The final angular velocity of the combination of discs isa)b)ωc)d)Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A round disc of moment of inertia I2 about its axis perpendicular to its plane and passing through its centre is placed over another disc of moment of inertia I1 rotating with an angular velocity ω about the same axis. The final angular velocity of the combination of discs isa)b)ωc)d)Correct answer is option 'C'. Can you explain this answer?.
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