1
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
From a disc of radius R and mass M, a circular hole of diameter R, whose rim passes through the centre is cut. What is the moment of inertia of the remaining part of the disc about a perpendicular axis, passing through the centre?
A
11 MR2/32
B
9 MR2/32
C
15 MR2/32
D
13 MR2/32
2
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
A uniform circular disc of radius 50 cm at rest is free to turn about an axis which is perpendicular to its plane and passes through its centre. It is subjected to a torque which produces a constant angular acceleration of 2.0 rad s$$-$$2. Its net acceleration in m s$$-$$2 at the end of 2.0 s is approximately
A
6.0
B
3.0
C
8.0
D
7.0
3
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
The ratio of escape velocity at earth (ve) to the escape velocity at a planet (vp) whose radius and mean density are twice as that of earth is
A
1 : 4
B
1 : $$\sqrt 2 $$
C
1 : 2
D
1 : 2$$\sqrt 2 $$
4
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
A piece of ice falls from a height h so that it melts completely. Only one-quarter of the heat produced is absorbed by the ice and all energy of ice gets converted into heat during its fall. The value of h [Latent heat of ice is $$3.4 \times {10^5}$$ J/kg and g = 10 N/Kg]
A
136 km
B
68 km
C
34 km
D
544 km
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