The rod PQ of length L = {√{2}}m, and uniformly distributed mass of M = 10 kg, is released from rest at the position shown in the figure. The ends slid along the frictionless faces OP and OQ. Assume acceleration due to gravity, g = 10 m/s2. The mass moment of inertia of the rod about its centre of mass and an axis perpendicular to the plane of the figure is (ML2/12). At this instant, the magnitude of angular acceleration (in radian/s2) of the rod is ________.

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