1
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
ABC is an equilateral triangle with O as its centre. $${\overrightarrow F _1},{\overrightarrow F _2}$$ and $${\overrightarrow F _3}$$ represent three forces acting along the sides AB, BC and AC respectively. If the total torque about O is zero then magnitude of $${\overrightarrow F _3}$$ is

AIPMT 2012 Prelims Physics - Rotational Motion Question 66 English
A
F1 + F2
B
F1 $$-$$ F2
C
$${{{F_1} + {F_2}} \over 2}$$
D
2(F1 + F2)
2
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
Two persons of masses 55 kg and 65 kg respectively, are at the opposite ends of a boat. The length of the boat is 3.0 m and weights 100 kg. The 55 kg man walks up to the 65 kg man and sits with him. If the boat is in still water the centre of mass of the system shifts by :
A
3.0 m
B
2.3 m
C
zero
D
0.75 m
3
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
Liquid oxygen at 50 K is heated to 300 K at constant pressure of 1 atm. The rate of heating is constant. Which one of the following graphs represents the variation of temperature with time ?
A
AIPMT 2012 Prelims Physics - Properties of Matter Question 50 English Option 1
B
AIPMT 2012 Prelims Physics - Properties of Matter Question 50 English Option 2
C
AIPMT 2012 Prelims Physics - Properties of Matter Question 50 English Option 3
D
AIPMT 2012 Prelims Physics - Properties of Matter Question 50 English Option 4
4
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
The height at which the weight of a body becomes $${\left( {{1 \over {16}}} \right)^{th}}$$, its weight on the surface of earth (radius R), is
A
5R
B
15R
C
3R
D
4R