1
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
2
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
A disc and a sphere of same radius but different masses roll off on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first?
A
Both reach at the same time
B
Depends on their masses
C
Disc
D
Sphere
3
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
At what height from the surface of earth the gravitation potential and the value of g are $$-$$5.4 $$ \times $$ 107 J kg$$-$$1 and 6.0 m s$$-$$2 respectively? Take the radius of earth as 6400 km.
A
1400 km
B
2000 km
C
2600 km
D
1600 km
4
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
Two non-mixing liquids of densities $$\rho $$ and n$$\rho $$ (n > 1) are put in a container. The height of each liquid is h. A solid cylinder of length L and density d is put in this container. The cylinder floats with its axis vertical and length $$\rho $$L ($$\rho $$ < 1) in the denser liquid. The density d is equal to
A
$$\left\{ {2 + \left( {n - 1} \right)p} \right\}\rho $$
B
$$\left\{ {1 + \left( {n - 1} \right)p} \right\}\rho $$
C
$$\left\{ {1 + \left( {n + 1} \right)p} \right\}\rho $$
D
$$\left\{ {2 + \left( {n + 1} \right)p} \right\}\rho $$