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COMEDK UGET
List of top Questions asked in COMEDK UGET
If
$\vec{a} , \vec{b} ,\vec{c}$
are unit vectors and
$\theta$
is the angle between them, then
$| \vec{a} - \vec{b}| = $
COMEDK UGET - 2008
COMEDK UGET
Mathematics
Vector Algebra
If
$\vec{a} = \hat{i} + \lambda \hat{j} + 2 \hat{k}$
and
$\vec{b} = \mu \hat{i} + \lambda \hat{j} + 2 \hat{k}$
are orthogonal and if
$|\vec{a} | = |\vec{b}|$
, then
$(\lambda, \mu)$
=
COMEDK UGET - 2008
COMEDK UGET
Mathematics
Vector Algebra
If a set
$A$
has
$n$
elements, then the number of relations on
$A$
is
COMEDK UGET - 2008
COMEDK UGET
Mathematics
Relations and functions
Which one of the following forms an alcohol with nitrous acid?
COMEDK UGET - 2008
COMEDK UGET
Chemistry
Amines
Buffer capacity of a buffer will be maximum when
COMEDK UGET - 2008
COMEDK UGET
Chemistry
Equilibrium
If
$y =\left(1+x\right)\left(1+x^{2}\right) ....\left(1+x^{100}\right),$
then
$\frac{dx}{dy} $
at
$x = 0$
is
COMEDK UGET - 2008
COMEDK UGET
Mathematics
limits and derivatives
Dissociation constant of a weak acid is
$10^{-5}$
. The pH of 0.1 M solution of this acid is
COMEDK UGET - 2008
COMEDK UGET
Chemistry
Equilibrium
Which one of the following has maximum magnetic moment?
COMEDK UGET - 2008
COMEDK UGET
Chemistry
d -and f -Block Elements
In an interference experiment two parallel vertical slits
$S_1$
and
$S_2$
are used. A thin glass plate is introduced in the path of light from
$S_1$
. Then
COMEDK UGET - 2008
COMEDK UGET
Physics
Wave optics
Nitrogen is obtained by heating
COMEDK UGET - 2008
COMEDK UGET
Chemistry
p -Block Elements
The Ostwald's dilution law is obeyed by
COMEDK UGET - 2008
COMEDK UGET
Chemistry
Electrochemistry
A slab consists of two plates of different materials of same thickness and having thermal conductivities
$K_1$
and
$K_2$
. The equivalent thermal conductivity of the slab is
COMEDK UGET - 2008
COMEDK UGET
Physics
thermal properties of matter
Cryoscopic constant is the depression in the freezing point produced by
COMEDK UGET - 2008
COMEDK UGET
Chemistry
Solutions
$\displaystyle\lim_{n\to\infty} \frac{1^{2}+2^{2} +...+n^{2}}{4n^{3}+6n^{2}-5n+1}=$
COMEDK UGET - 2008
COMEDK UGET
Mathematics
limits and derivatives
Woollen clothes keep the body warm because they
COMEDK UGET - 2008
COMEDK UGET
Physics
thermal properties of matter
Which one of the following forms oleum when dissolved in cone
$ {H_2SO_4}$
?
COMEDK UGET - 2008
COMEDK UGET
Chemistry
p -Block Elements
A body when released from the top of a tower of height
$h$
reaches the ground in time 1 second. Time in second at which it is a height
$ \frac{h}{2}$
above the groun.d is
COMEDK UGET - 2008
COMEDK UGET
Physics
Motion in a straight line
If
$C$
is the centre of the ellipse
$\frac{x^{2}}{16} + \frac{y^{2}}{9} = 1 $
and S is one of the foci, then the ratio of CS to semi-minor axis of the ellipse is
COMEDK UGET - 2008
COMEDK UGET
Mathematics
Conic sections
If
$\log (x + z) + \log (x - 2y + z) = 2 \log (x - z),$
then
$ x, y, z$
are in
COMEDK UGET - 2008
COMEDK UGET
Mathematics
Sequence and series
The EMF of a cell containing sodium/copper electrodes is 3.05 V. If the electrode potential of copper electrode is + 0.34 V the electrode potential of sodium is
COMEDK UGET - 2008
COMEDK UGET
Chemistry
Electrochemistry
The range of a particle projected at an angle of 15? with the horizontal is 1.5 km. Its range when projected with the same velocity at an angle of 45? with the horizontal is
COMEDK UGET - 2008
COMEDK UGET
Physics
Motion in a plane
The modulus and amplitude of
$\frac{ 1 + 2i}{1 - (1 - i)^2}$
are respectively
COMEDK UGET - 2008
COMEDK UGET
Mathematics
complex numbers
A charge situated at a certain distance along the axis of an electric dipole experience a force
$F$
. If the distance of the charge from the dipole is doubled, the force acting on it will become
COMEDK UGET - 2008
COMEDK UGET
Physics
Electric charges and fields
Iodine value is used to determine
COMEDK UGET - 2008
COMEDK UGET
Chemistry
Hydrocarbons
$+I$
effectis exhibited by
COMEDK UGET - 2008
COMEDK UGET
Chemistry
Organic Chemistry- Some Basic Principles and Techniques
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