1
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
The dependence of acceleration due to gravity g on the distance r from the centre of the earth, assumed to be a sphere of radius R of uniform density is as shown in figures below

AIPMT 2010 Mains Physics - Gravitation Question 34 English

The correct figure is
A
(4)
B
(1)
C
(2)
D
(3)
2
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
A thin circular ring of mass M and radius r is rotating about its axis with constant angular velocity $$\omega $$. Two objects each of msass m are attached gently to the opposite ends of a diameter of the ring. The ring now rotates with angular velocity given by
A
$${{\left( {M + 2m} \right)\omega } \over {2m}}$$
B
$${{2M\omega } \over {M + 2m}}$$
C
$${{\left( {M + 2m} \right)\omega } \over M}$$
D
$${{M\omega } \over {M + 2m}}$$
3
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
A solid cylinder and a hollow cylinder, both of the same mass and same external diameter are released from the same height at the same time on an inclined plane. Both roll down without slipping. Which one will reach the bottom first?
A
Both together only when angle of inclination of plane is 45o
B
Both together
C
Hollow cylinder
D
Solid cylinder
4
AIPMT 2010 Mains
MCQ (Single Correct Answer)
+4
-1
From a circular disc of radius R and mass 9M, a small disc of mass M and radius $${R \over 3}$$ is removed concentrically. The moment of inertia of the remaining disc about an axis perpendicular to the plane of the disc and passing through its centre is
A
$${{40} \over 9}$$ MR2
B
MR2
C
4MR2
D
$${4 \over 9}$$ MR2
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