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QJEEM18Phcbb8: JEE Main 2018 Physics - Class 11 JEEM18Phcbb8 Solution: A thin circular disk is in the xy plane as shown in the figure. …

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 :

JEE Main 2018 (Online) 16th April Morning Slot Physics - Rotational Motion Question 186 English

Multiple Choice Options

  • A 1:03
  • B 1:04
  • C 1:05
  • D 1:02

Step-by-Step Verified Solution

As we know,

moment of inertia about z axis

Iz=mR22

and moment of inertia about z'

Iz1=32mR2

∴ IzIz′ = mR2232mR2 = 13

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