1
NEET 2016 Phase 2
+4
-1
Two rotating bodies A and B of masses m and 2m with moments of inertia $${I_A}$$ and $${I_B}$$ ($${I_B}$$ > $${I_A}$$) have equal kinetic energy of rotation. If LA and LB be their angular momenta respectively, then
A
$${L_A} = {{{L_B}} \over 2}$$
B
$${L_A} = 2{L_B}$$
C
$${L_B} > {L_A}$$
D
$${L_A} > {L_B}$$
2
NEET 2016 Phase 2
+4
-1
A solid sphere of mass m and radius R is rotating about its diameter. A solid cylinder of same mass and same radius is also rotating about its geometrical axis with an angular speed twice that of the sphere. The ratio of their kinetic energies of rotation (Esphere / Ecylinder) will be
A
2 : 3
B
1 : 5
C
1 : 4
D
3 : 1
3
NEET 2016 Phase 2
+4
-1
A light rod of length $$l$$ has two masses m1 and m2 attached to its two ends. The moment of inertia of the system about an axis perpendicular to the rod and passing through the centre of mass is
A
$${{{m_1}{m_2}} \over {{m_1} + {m_2}}}{l^2}$$
B
$${{{m_1} + {m_2}} \over {{m_1}{m_2}}}{l^2}$$
C
$$\left( {{m_1} + {m_2}} \right){l^2}$$
D
$$\sqrt {{m_1}{m_2}} \,{l^2}$$
4
NEET 2016 Phase 1
+4
-1
A disc and a sphere of same radius but different masses roll off on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first?
A
Both reach at the same time
B
Depends on their masses
C
Disc
D
Sphere
EXAM MAP
Medical
NEET