1
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
A ray of light is incident at an angle of incidence i, on one face of a prism of angle A (assumed to be small ) and emerges normally from the opposite face. If the refractive index of the prism is $$\mu $$. the angle of incidence i, is nearly equal to
A
$$\mu $$A
B
$${{\mu A} \over 2}$$
C
$${A \over \mu }$$
D
$${A \over {2\mu }}$$
2
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
A ring is made of a wire having a resistance R0 = 12 $$\Omega $$. Find the points A and B, as shown in the figure, at which a current carrying conductor should be connected so that the resistance R of the sub circuit between these point is equal to $${8 \over 3}\Omega $$.
AIPMT 2012 Prelims Physics - Current Electricity Question 93 English
A
$${{{l_1}} \over {{l_2}}} = {5 \over 8}$$
B
$${{{l_1}} \over {{l_2}}} = {1 \over 3}$$
C
$${{{l_1}} \over {{l_2}}} = {3 \over 8}$$
D
$${{{l_1}} \over {{l_2}}} = {1 \over 2}$$
3
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
A compass needle which is allowed to move in a horizontal plane is taken to a geomagnetic pole. It
A
will become rigif showing no movement
B
will stay in any position
C
will stay in north-south direction only
D
will stay in east-west direction only
4
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Change Language
Four point charges $$-$$Q, $$-$$q, 2q and 2Q are placed, one at each corner of the square. The relation between Q and q for which the potential at the centre of the square is zero is
A
Q = $$-$$q
B
Q = $$ - {1 \over q}$$
C
Q = q
D
Q = $${1 \over q}$$