1
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
A spherical planet has a mass MP and diameter DP. A particle of mass m falling freely near the surface of this planet will experience an acceleration due to gravity, equal to
A
$${{4G{M_P}} \over {D_P^2}}$$
B
$${{G{M_P}m} \over {D_P^2}}$$
C
$${{G{M_P}} \over {D_P^2}}$$
D
$${{4G{M_P}m} \over {D_P^2}}$$
2
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
The motion of a particle along a straight line is described by equation x = 8 + 12t $$-$$ t3 where x is in metre and t in second. The retardation of the particle when its velocity becomes zero is
A
24 m s$$-$$2
B
zero
C
6 m s$$-$$2
D
12 m s$$-$$2
3
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
Two spheres A and B of masses m1 and m2 respectively collide. A is at rest initially and B is moving with velocity v along x-axis. After collision B has a velocity $${v \over 2}$$ in a direction perpendicular to the original direction. The mass A moves after collision in the direction :
A
same as that of B
B
opposite to that of B
C
$$\theta $$ = tan$$-$$1 $$\left( {{1 \over 2}} \right)$$ to the x-axis
D
$$\theta $$ = tan$$-$$1$$\left( { - {1 \over 2}} \right)$$ to the x-axis
4
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
The horizontal range and the maximum height of a projectile are equal. The angle of projection of the projectile is
A
$$\theta $$ = tan$$-$$1$$\left( {{1 \over 4}} \right)$$
B
$$\theta $$ = tan$$-$$1(4)
C
$$\theta $$ = tan$$-$$1(2)
D
$$\theta $$ = 45o