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COMEDK UGET
List of top Questions asked in COMEDK UGET- 2014
$AB$
and
$CD$
are
$2$
line segments ; where
$A(2,3,0),B (6, 9, 0), C(-6, -9, 0). P $
and
$Q$
are midpoint of
$AB$
and
$CD$
, respectively and
$L$
is the midpoint of
$PQ$
. Find the distance of
$L$
from the plane
$3x + 4z + 25 = 0$
COMEDK UGET - 2014
COMEDK UGET
Mathematics
Three Dimensional Geometry
Sulphur sol is a type of
COMEDK UGET - 2014
COMEDK UGET
Chemistry
Colloids
What is the dimensional formula for universal gravitational constant
$G$
?
COMEDK UGET - 2014
COMEDK UGET
Physics
Units and measurement
$aP + bQ \to $
Products, when
$[P]$
is doubled keeping
$[Q]$
constant rate increases
$2$
times, when
$[P]$
is constant and
$[Q]$
is doubled, rate increases four times. The overall order is
COMEDK UGET - 2014
COMEDK UGET
Chemistry
Chemical Kinetics
If the line px + qy = 0 coincides with one of the lines given by
$ax^2 + 2hxy + by^2 = 0$
, then
COMEDK UGET - 2014
COMEDK UGET
Mathematics
Straight lines
The value of
$\sin \left[\cot^{-1}\{{\cos(tan^{-1}\,x)\}}\right]$
is
COMEDK UGET - 2014
COMEDK UGET
Mathematics
Properties of Inverse Trigonometric Functions
Schottky defect in crystals is observed when
COMEDK UGET - 2014
COMEDK UGET
Chemistry
The solid state
If the circle
$x^2+y^2+2\,gx+2fy+=0,$
and
$x^2+y^2+2g'x+2f'y$
touch each other, then
COMEDK UGET - 2014
COMEDK UGET
Mathematics
Conic sections
Vapour pressure of water at
$293\, K$
is
$17.535\, mm \,Hg$
. The vapour pressure of water at
$293 \,K$
containing
$25 \,g$
of glucose dissolved in
$450\, g$
of water is
COMEDK UGET - 2014
COMEDK UGET
Chemistry
Solutions
A 150 watt bulb emits light of wavelength 6600
$?$
and only 8% of the energy is emitted as light. How many photons are emitted by the bulb per second?
COMEDK UGET - 2014
COMEDK UGET
Chemistry
Structure of atom
Einstein was awarded Nobel prize for his work in
COMEDK UGET - 2014
COMEDK UGET
Physics
Units and measurement
The unstable intermediate dichlorocarbene
$ {[:CCl_2]}$
is formed during
COMEDK UGET - 2014
COMEDK UGET
Chemistry
Chemical Reactions
The radius of an atom is
$300\,pm$
. If it crystallizes in a face-centered cubic lattice, length of the edge of the unit cell is
COMEDK UGET - 2014
COMEDK UGET
Chemistry
The solid state
When
$2$
-bromopentane is heated with alcoholic solution of potassium hydroxide, the major product obtained is
COMEDK UGET - 2014
COMEDK UGET
Chemistry
Hydrocarbons
A spherical balloon is being inflated at the rate of
$35\, cc$
per minute, When its radius is
$7\, cm$
, its surface area increases at the rate of
COMEDK UGET - 2014
COMEDK UGET
Mathematics
Application of derivatives
In the following sets of ions, which one is not isoelectronic with the rest of the species?
$ { O^{2-}, F^- , Na, Mg^{2+}, Al^{3+}, Ne} $
COMEDK UGET - 2014
COMEDK UGET
Chemistry
Structure of atom
One second is defined as
COMEDK UGET - 2014
COMEDK UGET
Physics
Units and measurement
Van't Hoff factors of equimolal solutions of sodium chloride, barium chloride and glucose in water are
COMEDK UGET - 2014
COMEDK UGET
Chemistry
Solutions
The subtangent at
$x = \pi/2$
on the curve
$y = x \sin x $
is
COMEDK UGET - 2014
COMEDK UGET
Mathematics
Application of derivatives
On an average, a human heart is found to beat $72$ times a minute. Its frequency and period are
COMEDK UGET - 2014
COMEDK UGET
Physics
Oscillations
An orbital with
$n = 3, l = 1$
is designated as
COMEDK UGET - 2014
COMEDK UGET
Chemistry
Structure of atom
A crystalline solid has
$A^-$
ions at the corners and face centres whereas
$B^+$
ions are at the body centre and edge centres of the unit cell. The simplest formula of the compound will be
COMEDK UGET - 2014
COMEDK UGET
Chemistry
The solid state
A proton and helium nucleus are shot into a magnetic field at right angles to the field with same kinetic energy. Then the ratio of their radii is
COMEDK UGET - 2014
COMEDK UGET
Physics
Moving charges and magnetism
Which one of the following represents uniform motion ?
COMEDK UGET - 2014
COMEDK UGET
Physics
Motion in a straight line
An aeroplane is flying horizontally with a velocity of
$360\, km\, h^{-1}$
. The distance between the tips of the wings of the aeroplane is
$50\, m$
. The vertical component of the earth's magnetic field is
$4 \times 10^{-4} \, Wb \, m^{-2}$
. The induced e.m.f. is
COMEDK UGET - 2014
COMEDK UGET
Physics
Electromagnetic induction
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