1
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Two springs A and B having spring constant KA and KB (KA = 2KB) are stretched by applying force of equal magnitude. If energy stored in spring A is EA then energy stored in B will be
A
2EA
B
EA/4
C
EA/2
D
4EA
2
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
A disc is rolling, the velocity of its centre of mass is vcm. Which one will be correct?
A
the velocity of highest point is 2 vcm and point of contact is zero
B
the velocity of highest point is vcm and point of contact is vcm
C
the velocity of highest point is 2vcm and point of contact is vcm
D
the velocity of highest point is 2vcm and point of contact is 2vcm.
3
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
With what velocity should a particle be projected so that its height becomes equal to radius of earth?
A
$${\left( {{{GM} \over R}} \right)^{1/2}}$$
B
$${\left( {{{8GM} \over R}} \right)^{1/2}}$$
C
$${\left( {{{2GM} \over R}} \right)^{1/2}}$$
D
$${\left( {{{4GM} \over R}} \right)^{1/2}}$$
4
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
$${{{Q_1}} \over 2}$$
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