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
A mass is suspended separately by two different springs in (successive order then time periods is t1 and t2 respectively, If it is connected by both spring as shown in figure then time period is t0 , the correct relation is

AIPMT 2002 Physics - Oscillations Question 20 English
A
$$t_0^2 = t_1^2 + t_2^2$$
B
$$t_0^{ - 2} = t_1^{ - 2} + t_2^{ - 2}$$
C
$$t_0^{ - 1} = t_1^{ - 1} + t_2^{ - 1}$$
D
$${t_0} = {t_1} + {t_2}$$
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
A wave travelling in positive X-direction with a $$=$$ 0.2 ms$$-$$2, velocity = 360 ms$$-$$1 and $$\lambda $$ $$=$$ 60 m, then correct expression for the wave is
A
$$y = 0.2\sin \left[ {2\pi \left( {6t + {x \over {60}}} \right)} \right]$$
B
$$y = 0.2\sin \left[ {\pi \left( {6t + {x \over {60}}} \right)} \right]$$
C
$$y = 0.2\sin \left[ {2\pi \left( {6t - {x \over {60}}} \right)} \right]$$
D
$$y = 0.2\sin \left[ {\pi \left( {6t - {x \over {60}}} \right)} \right]$$
4
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
$${{8\sqrt 2 \,{q^2}} \over {4\,\pi {\varepsilon _0}b}}$$
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