1
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Change Language
A rod of weight W is supported by two parallel knife edges A and B and is in equilibrium in a horizontal position. The knives are at a distance d from each other. The centre of mass of the rod is at distance x from A. The normal reaction on A is
A
$${{W\left( {d - x} \right)} \over x}$$
B
$${{W\left( {d - x} \right)} \over d}$$
C
$${{Wx} \over d}$$
D
$${{Wd} \over x}$$
2
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Change Language
Three identical spherical shells, each of mass m and radius r are placed as shown in figure. Consider an axis XX' which is touching to two shells and passing through diameter of third shell. Moment of inertia of the system consisting of these three spherical shells about XX' axis is

AIPMT 2015 Cancelled Paper Physics - Rotational Motion Question 75 English
A
$${{16} \over 5}m{r^2}$$
B
4mr2
C
$${{11} \over 5}m{r^2}$$
D
3mr2
3
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Change Language
Kepler's third law states that square of period of revoluation (T) of a planet around the sun, is proportional to third power of average distance r between sun and planet i.e. T2 = Kr3 here K is constant. If the masses of sun and planet are M and m respectively then as per Newton's law of gravitation force of attraction between them is F = $${{GMm} \over {{r^2}}}$$, here G is gravitational constant. The relation between G and K is described as
A
K = G
B
K = $${1 \over G}$$
C
GK = 4$$\pi $$2
D
GMK = 4$$\pi $$2
4
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Change Language
The two ends of a metal rod are maintained at temperatures 100oC and 110oC. The rate of heat flow in the rod is found to be 4.0 J/s. If the ends are maintained at temperatures 200oC and 210oC, the rate of heat flow will be
A
8.0 J/s
B
4.0 J/s
C
44.0 J/s
D
16.8 J/s