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A thin circular disk is in the xy plane as shown in the figure. The ratio of its moment of inertia about z and z' axes will be :
  • a)
    1 : 4
  • b)
    1 : 5
  • c)
    1 : 3
  • d)
    1 : 2
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A thin circular disk is in the xy plane as shown in the figure. The ra...
We know that, the moment of inertia of the circular disk about the center is

Using parallel axis theorem,
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Most Upvoted Answer
A thin circular disk is in the xy plane as shown in the figure. The ra...
MOI of disk about x-axis = MR^2/2

MOI about z'-axis = MOI about z- axis + MX^2
( parallel axes theorem)

= MR^2/2 + MR^2

= 5MR^2/2

required ratio = 1:5
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Community Answer
A thin circular disk is in the xy plane as shown in the figure. The ra...
We know that, the moment of inertia of the circular disk about the center is

Using parallel axis theorem,
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A thin circular disk is in the xy plane as shown in the figure. The ratio of its moment of inertia about z and z' axes will be :a)1 : 4b)1 : 5c)1 : 3d)1 : 2Correct answer is option 'C'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A thin circular disk is in the xy plane as shown in the figure. The ratio of its moment of inertia about z and z' axes will be :a)1 : 4b)1 : 5c)1 : 3d)1 : 2Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A thin circular disk is in the xy plane as shown in the figure. The ratio of its moment of inertia about z and z' axes will be :a)1 : 4b)1 : 5c)1 : 3d)1 : 2Correct answer is option 'C'. Can you explain this answer?.
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