1
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
The moment of inertia of a thin uniform rod of mass M and length L about an axis passing through its midpoint and perpendicular to its length is $$I$$0. Its moment of inertia about an axis passing through one of its ends and perpendicular to its length is
A
$${I_0} + M{L^2}/2$$
B
$${I_0} + M{L^2}/4$$
C
$${I_0} + 2M{L^2}$$
D
$${I_0} + M{L^2}$$
2
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
A planet moving along an elliptical orbit is closest to the sun at a distance r1 and farthest away at a distance of r2. If $$v$$1 and $$v$$2 are the linear velocities at these points respectively, then the ratio $${{{v_1}} \over {{v_2}}}$$ is
A
(r1 /r2)2
B
r2/r1
C
(r2/r1)2
D
r1/r2
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
During an isothermal expansion, a confined ideal gas does $$-$$ 150 J of work against its surroundings. This implies that
A
150 J of heat has been removed from the gas
B
300 J of heat has been added to the gas
C
no heat is transferred because the process is isothermal
D
150 J of heat has been added to the gas
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
When 1 kg of ice at 0oC melts to water at 0oC, the resulting change in its entropy, taking latent heat of ice to be 80 cal/oC, is
A
273 cal/K
B
8 $$ \times $$ 104 cal/K
C
80 cal/K
D
293 cal/K
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