1
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
When an oscillator completes 100 oscillations its amplitude reduced to $${1 \over 3}$$ of initial value. What will be its amplitude, when it complettes 200 oscillations ?
A
$${1 \over 8}$$
B
$${2 \over 3}$$
C
$${1 \over 6}$$
D
$${1 \over 9}$$
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Identical charges ($$-$$q) are placed at each corners of cube of side b then electrostatic potential energy of charge (+q) which is placed at centre of cube will be
A
$${{ - 4\sqrt 2 {q^2}} \over {\pi {\varepsilon _0}b}}$$
B
$${{ - 8\sqrt 2 {q^2}} \over {\pi {\varepsilon _0}b}}$$
C
$${{ - 4\,{q^2}} \over {\sqrt 3 \,\pi {\varepsilon _0}b}}$$
D
$${{8\sqrt 2 \,{q^2}} \over {4\,\pi {\varepsilon _0}b}}$$
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
A charge q moves in a region where electric field and magnetic field both exist, then force on it is
A
$$q\left( {\overrightarrow v \times \overrightarrow B } \right)$$
B
$$q\overrightarrow E + q\left( {\overrightarrow v \times \overrightarrow B } \right)$$
C
$$q\overrightarrow E + \overrightarrow q \left( {\overrightarrow B \times \overrightarrow v } \right)$$
D
$$q\overrightarrow B + \overrightarrow q \left( {\overrightarrow E \times \overrightarrow v } \right)$$
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
To convert a galvanometer into a voltmeter one should connect a
A
high resistance in series with galvanometer
B
low resistance in series with galvanometer
C
high resistance in parallel with galvanometer
D
low resistance in parallel with galvanometer.