1
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
A vertical spring with force constant k is fixed on a table. A ball of mass m at a height h above the free upper end of the spring falls vertically on the spring so that the spring is compressed by a distance d. The net work done in the process is
A
mg(h + d) $$-$$ $${1 \over 2}$$kd2
B
mg(h $$-$$ d) $$-$$ $${1 \over 2}$$kd2
C
mg(h $$-$$ d) + $${1 \over 2}$$kd2
D
mg(h + d) + $${1 \over 2}$$kd2
2
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
A particle of mass m moves in the XY plane with a velocity v along the straight line AB. If the angular momentum of the particle with respect to origin O is LA when it is at A and LB when it is at B, then AIPMT 2007 Physics - Rotational Motion Question 49 English
A
LA = LB
B
the relationship between LA and LB depends upon the slope of the line AB
C
LA < LB
D
LA > LB.
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
A wheel has angular acceleration of 3.0 rad/sec2 and an initial angular speed of 2.00 rad/sec. In a time of 2 sec it has rotated through an angle (in radian) of
A
10
B
12
C
4
D
6
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
For a cubic crystal structure which one of the following relations indicating the cell characteristics is correct ?
A
a $$ \ne $$ b $$ \ne $$ c  and  $$\alpha $$ = $$\beta $$ = $$\gamma $$ = 90o
B
a = b = c  and  $$\alpha $$ $$ \ne $$ $$\beta $$ $$ \ne $$ $$\gamma $$ = 90o
C
a = b = c  and  $$\alpha $$ = $$\beta $$ = $$\gamma $$ = 90o
D
a $$ \ne $$ b $$ \ne $$ c  and  ;$$\alpha $$ $$ \ne $$ $$\beta $$ $$ \ne $$  and  $$\gamma $$ = 90o