# A stationary horizon disc is free to rotate about its axis. When a torque is applied on it,its kinetic energy as a function of ,where  is the angle by which it has rotated ,is given as . If its moment of inertia is  then the angular accerlation of the disc is : Option 1)   Option 2)   Option 3) Option 4)

angular acceleration

Option 1)

Option 2)

Option 3)

Option 4)

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