1
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
Among the following sets of reactants which one produces anisole?
A
CH3CHO ; RMgX
B
C6H5OH ; NaOH ; CH3I
C
C6H5OH ; neutral FeCl3
D
C6H5CH3 ; CH3COCl ; AlCl3
2
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
Light with an energy flux of 25 $$ \times $$ 104 W m$$-$$2 falls on a perfectly reflecting surface at normal incidence. If the surface area is 15 cm2, the average force exerted on the surface is
A
1.25 $$ \times $$ 10$$-$$6 N
B
2.50 $$ \times $$ 10$$-$$6 N
C
1.20 $$ \times $$ 10$$-$$6 N
D
3.0 $$ \times $$ 10$$-$$6 N
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
A conducting sphere of radius R is given a charge Q. The electric potential and the electric field at the centre of the sphere rrespectively are
A
zero and $${Q \over {4\pi {\varepsilon _0}{R^2}}}$$
B
$${Q \over {4\pi {\varepsilon _0}R}}$$ and zero
C
$${Q \over {4\pi {\varepsilon _0}R}}$$ and $${Q \over {4\pi {\varepsilon _0}{R^2}}}$$
D
both are zero
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Change Language
The resistances in the two arms of the meter bridge are 5 $$\Omega $$ and R$$\Omega $$ respectively. When the resistance R is shunted with an equal resistance, the new balance point is at 1.6$$l$$1. The resistance R is

AIPMT 2014 Physics - Current Electricity Question 103 English
A
10 $$\Omega $$
B
15 $$\Omega $$
C
20 $$\Omega $$
D
25 $$\Omega $$