1
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
A car is moving in a circular horizontal track of radius 10 m with a constant speed of 10 m/s. A bob is suspended from the roof of the car by a light wire of length 1.0 m. The angle made by the wire with the vertical is
A
$${\pi \over 3}$$
B
$${\pi \over 6}$$
C
$${\pi \over 4}$$
D
0o
2
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
A particle with total energy E is moving in a potential energy region U(x). Motion of the particle is restricted to the region when
A
U(x) < E
B
U(x) = 0
C
U(x) $$ \le $$ E
D
U(x) > E
3
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
One coolie takes 1 minute to raise a suitcase through a height of 2 m but the second coolie takes 30 s to raise the same suitcase to the same height. The powers of two coolies are in the ratio
A
1 : 3
B
2 : 1
C
3 : 1
D
1 : 2
4
NEET 2013 (Karnataka)
MCQ (Single Correct Answer)
+4
-1
The ratio of radii of gyration of a circular ring and a circular disc, of the same mass and radius, about an axis passing through their centres and perpendicular to their planes are
A
$$1:\sqrt 2 $$
B
3 : 2
C
2 : 1
D
$$\sqrt 2 :1$$
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