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Rotational Motion question

2017 · 8 Apr · Shift 1 · Q67
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  5. /2017 · 8 Apr · Shift 1 · Q67

Rotational Motion question

2017 · 8 Apr · Shift 1 · Q67

JEE MainPhysicsRotational MotionMCQ+4 / −1
Moment of inertia of an equilateral triangular lamina ABC, about the axis passing through its centre O and perpendicular to its plane is Io as shown in the figure. A cavity DEF is cut out from the lamina, where D, E, F are the mid points of the sides. Moment of inertia of the remaining part of lamina about the same axis is : JEE Main 2017 (Online) 8th April Morning Slot Physics - Rotational Motion Question 199 English
  1. A
    78{7 \over 8}87​ Io
  2. B
    1516{15 \over 16}1615​ Io
  3. C
    3 Io4{{3\,{{\rm I}_o}} \over 4}43Io​​
  4. D
    31 Io32{{31\,{{\rm I}_o}} \over 32}3231Io​​
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