1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
An observer moves towards a stationary source of sound with a speed 1/5th of the speed of sound. The wavelength and frequency of the source emitted are $$\lambda $$ and $$f$$ respectively. The apparent frequency and wavelength recorded by the observer are respectively
A
1.2 $$f$$,   1.2 $$\lambda $$
B
1.2 $$f$$,  $$\lambda $$
C
$$f$$,  1.2 $$\lambda $$
D
0.8 $$f$$,   0.8 $$\lambda $$
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Three capacitors each of capacity 4 $$\mu $$F are to be connected in such a way that the effective capacitance is $$6\mu F.$$ This can be done by
A
connecting all of them in series
B
connecting them in parallel
C
connecting two in series and one in parallel
D
connecting two in parallel and one in series
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
A charge q is located at the centre of a cube. The electric flux through any face is
A
$${{2\pi q} \over {6\left( {4\pi {\varepsilon _0}} \right)}}$$
B
$${{4\pi q} \over {6\left( {4\pi {\varepsilon _0}} \right)}}$$
C
$${{\pi q} \over {6\left( {4\pi {\varepsilon _0}} \right)}}$$
D
$${q \over {6\left( {4\pi {\varepsilon _0}} \right)}}$$
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Two 220 volt, 100 watt bulbs are connected first in series and then in parallel. Each time the combination is connected to a 220 volt a.c. supply line. The power drawn by the combination in each case respectively will be
A
50 watt, 100 watt
B
100 watt, 50 watt
C
200 watt, 150 watt
D
50 watt, 200 watt
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