In first figure a meter stick, half of which is wood and the other half steel is pivoted at the wooden end at `A` and a force is applied at the steel and at `O`. On second figure the stick is pivoted at the steel end at `O` and the same force is applied at the wooden end at `A`. The angular acceleration.
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Explanation

We know that torque,
`tau =` Force `xx` distance `= I alpha =` constant
`:. alpha = (tau)/(I)` i.e. `alpha prop (1)/(I)`
Angular acc. `(alpha)` will be more, when `I` is small, for which lighter material (wood) should be at larger distance from the axis of rotation, i.e., when the stick is provoted at the steel end.