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19. Let be the moment of inertia of an uniform square plate about an axis AB that passes through its centre and is parallel to two of its sides. CD is a line in the plane of the plate that passes through the centre of the plate and makes an angle θ with AB . The moment of inertia of the plate about the axis CD is then equal to

(a) l

(b) l sin²θ

(c) l cos²θ

(d) l cos²θ/2

Ans. a

(8)

5/5 - (1 vote)

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