# From a uniform disc of mass  and radius  a concentric disc of radius  is cut out. For the remaining annular disc:  is the moment of inertia about axis  about ‘2’,  about ‘3’ and  about ‘4’. Axis ‘1’ and ‘2’ are perpendicular to the disc and ‘3’ and ‘4’ are in the plane of the disc Axis’2’, ’3’ and ‘4’ intersect at a common point Match the following Column-I Column- II (A)  is equal to (p) (B)  is equal to (q) (C)  is equal to (r) (D)  is equal to (s) None of these CODES :   A B C D     a) D c b a     b) c a a b     c) b a c d     d) a b c d

## Question ID - 101078 :- From a uniform disc of mass  and radius  a concentric disc of radius  is cut out. For the remaining annular disc:  is the moment of inertia about axis  about ‘2’,  about ‘3’ and  about ‘4’. Axis ‘1’ and ‘2’ are perpendicular to the disc and ‘3’ and ‘4’ are in the plane of the disc Axis’2’, ’3’ and ‘4’ intersect at a common point Match the following Column-I Column- II (A)  is equal to (p) (B)  is equal to (q) (C)  is equal to (r) (D)  is equal to (s) None of these CODES :   A B C D     a) D c b a     b) c a a b     c) b a c d     d) a b c d

3537

(b)

Total mass :

Mass of cutout portion;

Also

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 Two points P and Q lie on either side of an axis xy as shown. It is desired to produce an image of P at Q using a spherical mirror with xy as the optic axis. The spherical mirror must be (a) converging and positioned with left of P (b) diverging and positioned with right of Q (c) diverging (d) converging positioned to the right of Q