1
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
The equation of a simple harmonic wave is given by

y = 3 sin$${\pi \over 2}$$(50t $$-$$ x),

where x and y are in metres and t is in seconds. The ratio of maximum particle velocity to the wave velocity is
A
2$$\pi $$
B
$${3 \over 2}\pi $$
C
$$3\pi $$
D
$${2 \over 3}\pi $$
2
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
A parallel plate capacitor has a uniform electric field E in the space between the plates. If the distance between the plates is d and area of each plate is A, the energy stored in the capacitor is
A
$${1 \over 2}{\varepsilon _0}{E^2}$$
B
$${{{E^2}Ad} \over {{\varepsilon _0}}}$$
C
$${1 \over 2}{\varepsilon _0}{E^2}Ad$$
D
$${\varepsilon _0}EAd$$
3
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
Two metallic spheres of radii 1 cm and 3 cm are given charges of $$-$$1 $$ \times $$ 10$$-$$2 C and 5 $$ \times $$ 10$$-$$2 C, respectively. If these are connected by a conducting wire, the final charge on the bigger sphere is
A
2 $$ \times $$ 10$$-$$2 C
B
3 $$ \times $$ 10$$-$$2 C
C
4 $$ \times $$ 10$$-$$2 C
D
1 $$ \times $$ 10$$-$$2 C
4
AIPMT 2012 Mains
MCQ (Single Correct Answer)
+4
-1
A cell having an emf $$\varepsilon $$ and internal resistance r is connected across a variable external resistance R. As the resistance R is increased, the plot of potential difference V across R is given by
A
AIPMT 2012 Mains Physics - Current Electricity Question 76 English Option 1
B
AIPMT 2012 Mains Physics - Current Electricity Question 76 English Option 2
C
AIPMT 2012 Mains Physics - Current Electricity Question 76 English Option 3
D
AIPMT 2012 Mains Physics - Current Electricity Question 76 English Option 4
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