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A hollow cylinder of radius R and height h (<< R) is completely filled with a liquid having coefficient of viscosity η. Now a cylinder of radius R is placed over it and is rotated with constant angular velocity ω by an external agent as shown.
  • a)
    External power required to rotate the cylinder with constant angular velocity ω is zero.
  • b)
    External torque required to rotate the cylinder with constant angular velocity ω is 
  • c)
    External torque required to rotate the cylinder with constant angular velocity ω is 
  • d)
    External power required to rotate the cylinder with constant angular velocity ω is 
Correct answer is option 'C'. Can you explain this answer?
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A hollow cylinder of radius R and height h (<< R) is completely ...
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A hollow cylinder of radius R and height h (<< R) is completely filled with a liquid having coefficient of viscosity η. Now a cylinder of radius R is placed over it and is rotated with constant angular velocity ωby an external agent as shown.a)External power required to rotate the cylinder with constant angular velocity ω is zero.b)External torque required to rotate the cylinder with constant angular velocity ωisc)External torque required to rotate the cylinder with constant angular velocity ωisd)External power required to rotate the cylinder with constant angular velocity ω isCorrect answer is option 'C'. Can you explain this answer?
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A hollow cylinder of radius R and height h (<< R) is completely filled with a liquid having coefficient of viscosity η. Now a cylinder of radius R is placed over it and is rotated with constant angular velocity ωby an external agent as shown.a)External power required to rotate the cylinder with constant angular velocity ω is zero.b)External torque required to rotate the cylinder with constant angular velocity ωisc)External torque required to rotate the cylinder with constant angular velocity ωisd)External power required to rotate the cylinder with constant angular velocity ω isCorrect answer is option 'C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A hollow cylinder of radius R and height h (<< R) is completely filled with a liquid having coefficient of viscosity η. Now a cylinder of radius R is placed over it and is rotated with constant angular velocity ωby an external agent as shown.a)External power required to rotate the cylinder with constant angular velocity ω is zero.b)External torque required to rotate the cylinder with constant angular velocity ωisc)External torque required to rotate the cylinder with constant angular velocity ωisd)External power required to rotate the cylinder with constant angular velocity ω isCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A hollow cylinder of radius R and height h (<< R) is completely filled with a liquid having coefficient of viscosity η. Now a cylinder of radius R is placed over it and is rotated with constant angular velocity ωby an external agent as shown.a)External power required to rotate the cylinder with constant angular velocity ω is zero.b)External torque required to rotate the cylinder with constant angular velocity ωisc)External torque required to rotate the cylinder with constant angular velocity ωisd)External power required to rotate the cylinder with constant angular velocity ω isCorrect answer is option 'C'. Can you explain this answer?.
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