1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
The moment of inertia of a uniform circular disc of radius R and mass M about an axis passing from the edge of the disc and normal to the disc is
A
MR2
B
$${1 \over 2}$$ MR2
C
$${3 \over 2}$$ MR2
D
$${7 \over 2}$$ MR2
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Two bodies have their moments of inertia I and 2I respectively about their axis of rotation. If their kinetic energies of rotation are equal, their angular velocity will be in the ratio
A
2 : 1
B
1 : 2
C
$$\sqrt 2 :1$$
D
$$1:\sqrt 2 $$
3
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
For a satellite moving in an orbit around the earth, the ratio of kinetic energy to potential energy is
A
1/2
B
1/$$\sqrt 2 $$
C
2
D
$$\sqrt 2 $$
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Imagine a new planet having the same density as that of earth but it is 3 times bigger than the earth in size. If the acceleration due to gravity on the surface of earth is g and that on the surface of the new planet is g', then
A
g' = g/9
B
g' = 27g
C
g' = 9g
D
g' = 3g
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