Four point masses 2kg, 4 kg, 6kg and 8kg are placed at four corners of a square of side 10cm.

Four point masses 2kg, 4 kg, 6kg and 8kg are placed at four corners of a square of side 10cm. The radius of gyration of system about an axis passing through centre O and perpendicular to square plane is

(A) 10 cm

(B) 10√2 cm

(D) 20√2 cm

Four point masses 2kg, 4 kg, 6kg and 8kg are placed at four corners of a square of side 10cm.

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