1
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
A child is sitting on a swing. Its minimum and maximum heights from the ground 0.75 m and 2 m respectively, its maximum speed will be
A
10 m/s
B
5 m/s
C
8 m/s
D
15 m/s
2
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
A particle is projected making an angle of 45o with horizontal having kinetic energy K. The kinetic energy at highest point will be
A
$${K \over {\sqrt 2 }}$$
B
$${K \over 2}$$
C
2K
D
K
3
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
A cylindrical rod having temperature T1 and T2 at its end. The rate of flow of heat Q1 cal/sec. If all the linear dimension are doubled keeping temperature constant, then rate of flow of heat Q2 will be
A
4Q1
B
2Q1
C
$${{{Q_1}} \over 4}$$
D
$${{{Q_1}} \over 2}$$
4
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
A scientist says that the efficiency of his heat engine which work at source temperature 127oC and sink temperature 27oC is 26%, then
A
it is impossible
B
it is possible but less probable
C
it is quite probable
D
data are incomplete.