LAMINA

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ABC is a plane lamina of the shape of an equilateral triangle. D , E are mid points of AB,AC and G is the centroid of the lamina . Moment of inertia of the lamina about an axis passing through G and perpendicular to the plane ABC is I_0 If part ADE is removed, the moment of inertia of a remaining part about the same axis is (NI_0)/16 where N is an integer . Value of N is

A symmetric lamina of mass M consists of a square shape with a semicircular section over each of the edge of the square as in fig. The side of the square is 2 a . The moment of inertia of the lamina about an axis through its centre of mass and perpendicular to the plane is 1.6 Ma^(2) . The moment of inertia of the lamina about the tangent AB in the plane of lamina is. .

A symmetric lamina of mass M consists of a square shape with a semicircular section over of the edge of the square as shown in fig. p-10. The side of the square is 2a. The moment of inertia of the lamina about an axis through its centre of mass and perpendicular to the plane is 1.6Ma^2 . The moment of inertia of the lamina is ......

A lamina is made by removing a small disc of diameter 2R from a bigger disc of uniform mass density and radius 2R, as shown in the figure. The moment of inertia of this lamina about axes passing though O and P is I_O and I_P respectively. Both these axes are perpendiucalr to the plane of the lamina. The ratio I_P/I_O ot the nearest integer is

Moment of inertia of an equilateral triangular lamina ABC, about the axis passing through its centre O and perpendicular to its plane is I_(0) as shown in the figure. A cavity DEF is cut out from the lamina, where D,E,F are the mid points of the sides. Moment of inertia of the remaining part of lamina about the same axis is -

Moment of inertia of a body about two perpendicular axes X and Y in the plane of lamina are 20 kg m and 25 kg m respectively. Its moment of inertia about an axis perpendicular to the plane of the lamina and passing through the point of intersection of X and Y axes is

Read the following statements. (i)In Limnophila heterophylla, the lamina of submerged leaves is very much dissected while the lamina of aerial leaves is entire.This variation in the form of lamina is referred to as ______. (ii)Potato tubers, when exposed to light, turn green due to the increased production of a glycoalkaloid named______. (iii)In ______,ovary arises from the bottom of the cup-shaped thalamus and androperianth arises from the rim of the cup-shaped thalamus. (iv)Underground stems can be differentiated from roots by ____ of axillary buds on the nodes. Select the correct fill-ups out of the following for the above statements