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QJEEM20Phe0e6: JEE Main 2020 Physics - Class 11 JEEM20Phe0e6 Solution: For a uniform rectangular sheet shown in the figure, the ratio…

For a uniform rectangular sheet shown in the figure, the ratio of moments of inertia about the axes perpendicular to the sheet and passing through O (the centre of mass) and O' (corner point) is : JEE Main 2020 (Online) 4th September Evening Slot Physics - Rotational Motion Question 124 English

Multiple Choice Options

  • A 12
  • B 14
  • C 18
  • D 23

Step-by-Step Verified Solution

IO=M12(a2+b2) = M12[802+602]

IO' = IO + Md2 {parallel axis theorem}

= M12[802+602] + M[50]2

∴ IOIO′ = M12[802+602]M12[802+602]+M[50]2 = 14

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