The falling height of an object is proportional to the square of the time. One object falls 64 cm in 2 sec then in 6 sec from how much height the object `192\ c m` b. `276\ c m` c. `576\ c m` d. `436\ c m`

If the perimeter of a sector of a circle of radius 6.5 cm is 29 cm, then its area is (a) 58\ c m^2 (b) 52\ c m^2 (c) 25\ c m^2 (d) 56\ c m^2

In Figure, if A C is bisector fo /_B A D such that A B=3\ c m\ a n d\ A C=5\ c m , then C D= 2\ c m (b) 3\ c m (c) 4\ c m (d) 5\ c m

An object of height 0.5 m is placed in front of convex mirror. Distance of object from the mirror is equal to the focal length of the mirror. Height of the image of the object is

A B\ a n d\ C D are two parallel chords of a circle with centre O such that A B=6\ c m\ a n d\ C D=12\ c mdot The chords are on the same side of the centre and the distance between them is 3 cm. The radius of the circle is 6\ c m (b) 5\ sqrt(2)\ c m (c) 7\ c m (d) 3\ sqrt(5)\ c m

The area of the circle that can be inscribed in a square of side 10 cm is (a) 40pi\ c m^2 (b) 30pi\ c m^2 (c) 100\ pi\ c m^2 (d) 25\ pi\ c m^2

The area of the figure formed by joining the mid-points of the adjacent sides of a rhombus with diagonals 16 c m\ a n d\ 12 c m\ is 28\ c m^2 (b) 48\ c m^2 (c) 96\ c m^2 (d) 24\ c m^2

Maximum acceleration of an object in simple harmonic motion is 24m/s^(2) and maximum velocity is 16m/ sec. The amplitude of object is

A piece of wire of length 12 cm is bent to form a square. The area of the square is 36 c m^2 (b) 144 c m^2 9 c m^2 (d) 12 c m^2