1
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Two bodies have their moments of inertia I and 2I respectively about their axis of rotation. If their kinetic energies of rotation are equal, their angular velocity will be in the ratio
A
2 : 1
B
1 : 2
C
$$\sqrt 2 :1$$
D
$$1:\sqrt 2 $$
2
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Imagine a new planet having the same density as that of earth but it is 3 times bigger than the earth in size. If the acceleration due to gravity on the surface of earth is g and that on the surface of the new planet is g', then
A
g' = g/9
B
g' = 27g
C
g' = 9g
D
g' = 3g
3
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Which of the following rods, (given radius r and length $$l$$) each made of the same material and whose ends are maintained at the same temperature will conduct most heat ?
A
r = r0, $$l$$ = $$l$$0
B
r = 2r0, $$l$$ = $$l$$0
C
r = r0, $$l$$ = 2$$l$$0
D
r = 2r0, $$l$$ = 2$$l$$0
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
An ideal gas heat engine operates in Carnot cycle between 227oC and 127oC. It absorbs 6 $$ \times $$ 104 cal of heat at higher temperature. Amount of heat converted to work is
A
4.8 $$ \times $$ 104 cal
B
6 $$ \times $$ 104 cal
C
2.4 $$ \times $$ 104 cal
D
1.2 $$ \times $$ 104 cal.
EXAM MAP