1
AIPMT 2011 Mains
+4
-1
Two identical piano wires, kept under the same tension T have a fundamental frequency of 600 Hz. The fractional increase in the tension of one of the wires which will lead to occurrence of 6 beats/s when both the wires oscillate together would be
A
0.01
B
0.02
C
0.03
D
0.04
2
AIPMT 2011 Mains
+4
-1
The electric potential V at any point (x, y, z), all in metres in space is given by V = 4x2 volt. The electric field at the point (1, 0, 2) in volt/meter, is
A
8 along negative X-axis
B
8 along positive X-axis
C
16 along negative X-axis
D
16 along positive X-axis
3
AIPMT 2011 Mains
+4
-1
Three charges, each +q, are placed at the corners of an isosceles triangle ABC of sides BC and AC, 2$$a$$. D and E are the mid points of BC and CA. The work done in taking a charge Q from D to E is A
$${{3qQ} \over {4\pi {\varepsilon _0}a}}$$
B
$${{3qQ} \over {8\pi {\varepsilon _0}a}}$$
C
$${{qQ} \over {4\pi {\varepsilon _0}a}}$$
D
zero
4
AIPMT 2011 Mains
+4
-1
In the circuit shown in the figure, if the potential at point A is taken to be zero, the potential at point B is A
+1 V
B
$$-$$1 V
C
+2 V
D
$$-$$2 V
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