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COMEDK UGET
List of top Questions asked in COMEDK UGET
If
$x= a\left(\cos \theta +\theta \sin \theta\right)$
and
$ y = a \left(\sin \theta- \theta \cos \theta \right) $
where
$0 < \theta < \frac{\pi}{2}$
, then
$ \frac{d^{2}y}{dx^{2}}$
at
$ \theta = \frac{\pi}{4}$
is equal to
COMEDK UGET - 2010
COMEDK UGET
Mathematics
Continuity and differentiability
If
$\log y= m \tan^{-1} x,$
then
COMEDK UGET - 2010
COMEDK UGET
Mathematics
Continuity and differentiability
If
$f\left(9\right)= 9 , f'\left(9\right) = 4 $
then
$\lim_{x\to9} \frac{\sqrt{f\left(x\right)} -3}{\sqrt{x} - 3} = $
COMEDK UGET - 2010
COMEDK UGET
Mathematics
limits and derivatives
Let
$y' = e^{-2x} $
and
$ y = 0$
when
$x =e$
. Then the value of
$x$
when
$ y =\frac{1}{2}$
is
COMEDK UGET - 2010
COMEDK UGET
Mathematics
Statistics
Excited H atom emits a photon of energy
$12.1 \, eV$
, orbital angular momentum of electron changes by
COMEDK UGET - 2010
COMEDK UGET
Physics
Atoms
Fehling's reagent contains
COMEDK UGET - 2010
COMEDK UGET
Chemistry
Aldehydes, Ketones and Carboxylic Acids
For a cell reaction involving two electron change, the standard e.m.f. of the cell is found to be 0.295 Vat 298 K. The equilibrium constant of the reaction at the same temperature will be
COMEDK UGET - 2010
COMEDK UGET
Chemistry
Electrochemistry
Hofmann's bromamide reaction is used to convert
COMEDK UGET - 2010
COMEDK UGET
Chemistry
Amines
If the rate equation for reaction is, rate =
$ k[A][B]^{1/2}$
, the order of reaction is
COMEDK UGET - 2010
COMEDK UGET
Chemistry
Chemical Kinetics
In a sonometer experiment, when the tension is changed by
$10\, kg \, wt$
, fundamental frequency emitted increases by
$50 \%$
. Original tension in kg wt is
COMEDK UGET - 2010
COMEDK UGET
Physics
Waves
In the manufacture of NaOH, by electrolysis of an aqueous solution of sodium chloride, the cathode and anode are separated by using a diaphragm because
COMEDK UGET - 2010
COMEDK UGET
Chemistry
GROUP 1 ELEMENTS
IUPAC name of
$ {K_3[Fe(CN)_6]}$
is
COMEDK UGET - 2010
COMEDK UGET
Chemistry
coordination compounds
Least stable structure in liquid crystalline state is observed in
COMEDK UGET - 2010
COMEDK UGET
Physics
Semiconductor electronics: materials, devices and simple circuits
The area bounded by the curve
$y = \sin x$
between
$x = 0$
and
$x = 2\pi $
given by
COMEDK UGET - 2010
COMEDK UGET
Mathematics
Area under Simple Curves
The indicator used in the titration of sodium carbonate and hydrochloric acid is
COMEDK UGET - 2010
COMEDK UGET
Chemistry
Acids and Bases
The pH of 0.01 M KOH is
COMEDK UGET - 2010
COMEDK UGET
Chemistry
Acids and Bases
Which of the following is not used to distinguish ethane from ethene ?
COMEDK UGET - 2010
COMEDK UGET
Chemistry
Hydrocarbons
Raindrops falling down attain limited value of velocity because of
COMEDK UGET - 2010
COMEDK UGET
Physics
mechanical properties of fluid
A voltmeter can read up to
$V$
volt. When the series resistance used in the voltmeter is doubled, range of voltmeter is
COMEDK UGET - 2010
COMEDK UGET
Physics
Moving charges and magnetism
Equivalent mass of
$ {K_2Cr_2O_7}$
in acidic solution is equal to
COMEDK UGET - 2010
COMEDK UGET
Chemistry
d -and f -Block Elements
75% of a first order reaction was completed in 32 minutes. When was 50% of the reaction completed
COMEDK UGET - 2010
COMEDK UGET
Chemistry
Chemical Kinetics
Among solids, the higher melting point is exhibited by
COMEDK UGET - 2010
COMEDK UGET
Chemistry
The solid state
The outer electronic configuration
$s^2p^5$
is possessed by
COMEDK UGET - 2010
COMEDK UGET
Chemistry
Structure of atom
Which of the following pairs is isoelectronic?
COMEDK UGET - 2010
COMEDK UGET
Chemistry
Structure of atom
Which of the following molecules exist?
COMEDK UGET - 2010
COMEDK UGET
Chemistry
Chemical bonding and molecular structure
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