Physics-
General
Easy

Question

Moment of inertia of a thin semicircular disc (mass = M & radius = R) about an axis through point O and perpendicular to plane of disc, is given by :

  1. fraction numerator 1 over denominator 4 end fraction M R to the power of 2 end exponent    
  2. fraction numerator 1 over denominator 2 end fraction M R to the power of 2 end exponent    
  3. fraction numerator 1 over denominator 8 end fraction M R to the power of 2 end exponent    
  4. M R to the power of 2 end exponent    

The correct answer is: fraction numerator 1 over denominator 2 end fraction M R to the power of 2 end exponent

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