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JEE Advanced
List of top Questions asked in JEE Advanced- 1999
A concave lens of glass, refractive index 1.5 has both surfaces of same radius of curvature R. On immersion in a medium of refractive index 1.75, it will behave as a
JEE Advanced - 1999
JEE Advanced
Physics
Spherical Mirrors
Yellow light is used in a single slit diffraction experiment with slit width of 0.6 mm. If yellow light is replaced by X-rays, then the observed pattern will reveal
JEE Advanced - 1999
JEE Advanced
Physics
Reflection Of Light By Spherical Mirrors
A spring of force constant
$k$
is cut into two pieces such that one piece is double the length of the other. Then the long piece will have a force constant of
JEE Advanced - 1999
JEE Advanced
Physics
Oscillations
An elliptical cavity is carved within a perfect conductor. A positive charge q is placed at the centre of the cavity. The points A and B are on the cavity surface as shown in the figure.then
JEE Advanced - 1999
JEE Advanced
Physics
Electric charges and fields
For the chemical reaction,
$3 X ( g) + Y ( g) \rightleftharpoons \, X_3 \, Y $
( g) the amount of
$X_3 Y$
at equilibrium is affected by
JEE Advanced - 1999
JEE Advanced
Chemistry
Equilibrium
In the dichromate dianion
JEE Advanced - 1999
JEE Advanced
Chemistry
d block elements
The correct statement regarding defects in solids is
JEE Advanced - 1999
JEE Advanced
Chemistry
The solid state
If
$ i = \sqrt -1$
then
$ 4 + 5 \bigg(-\frac{1}{2}+\frac{i\sqrt 3}{2}\bigg)^{334}+3\bigg(-\frac{1}{2}+\frac{i\sqrt 3}{2}\bigg)^{365}$
is equal to
JEE Advanced - 1999
JEE Advanced
Mathematics
Complex Numbers and Quadratic Equations
A coil of inductance 8.4 mH and resistance
$ 6 \Omega$
is connected to a 12 V battery. The current in the coil is 1A at approximately the time
JEE Advanced - 1999
JEE Advanced
Physics
Alternating current
In the circuit shown $P eqR,$ the reading of galvanometer is same with switch S open or closed. Then
JEE Advanced - 1999
JEE Advanced
Physics
Current electricity
In the depression of freezing point experiment, it is found that the
JEE Advanced - 1999
JEE Advanced
Chemistry
Solutions
The following statement (s) is are correct
JEE Advanced - 1999
JEE Advanced
Chemistry
Chemical Kinetics
In a
$\triangle PQR, \angle R = \frac{\pi}{2} , \, if \, tan \, \bigg( \frac{ P}{2}\bigg) $
and \, tan
$ \bigg( \frac{ Q}{2}\bigg)$
are the roots of the equation
$ ax^2 + bx + c = 0 \, (a \ne 0 )$
, then
JEE Advanced - 1999
JEE Advanced
Mathematics
Quadratic Equations
The function f (x) =
$ [ x]^2 - [ x]^2 $
(where, [x] is the greatest integer less than or equal to x), is discontinuous at
JEE Advanced - 1999
JEE Advanced
Mathematics
Functions
A buffer solution can be prepared from a mixture of
JEE Advanced - 1999
JEE Advanced
Chemistry
Equilibrium
The number of neutrons accompanying the formation of
$^{139}_{54}Xe \, \, and \, \, ^{94}_{38}Sr$
from the absorption of a slow neutron by
$^{235}_{92}U,$
followed by nuclear fission is
JEE Advanced - 1999
JEE Advanced
Chemistry
Nuclear physics
The optically active tartaric acid is named as D-(+)-tartaric acid because it has a positive
JEE Advanced - 1999
JEE Advanced
Chemistry
Nomenclature of Coordination Compounds
Order of magnitude of density of uranium nucleus is $ (m_p = 1.67 \times 10^{-27} Kg ) $
JEE Advanced - 1999
JEE Advanced
Physics
Nuclei
One mole of calcium phosphide on reaction with excess water gives
JEE Advanced - 1999
JEE Advanced
Chemistry
p -Block Elements
Binding energy per nucleon versus mass number curve for nuclei is shown in figure. W, X, Y and Z are four nuclei indicated on the curve. The process that would release energy is
JEE Advanced - 1999
JEE Advanced
Physics
Nuclei
A particle of mass M at rest decays into two particles of masses $ m_1 \, and \, \, m_2 $ having non-zero velocities. The ratio of the de-Broglie wavelengths of the particles $ \frac{\lambda_1}{\lambda_2} $ is
JEE Advanced - 1999
JEE Advanced
Physics
Waves
Two identical circular loops of metal wire are lying on a table without touching each other. Loop A carries a current which increases with time. In response, the loop B
JEE Advanced - 1999
JEE Advanced
Physics
Faradays laws of induction
The ratio of the speed of sound in nitrogen gas to that in helium gas, at 300 K. is
JEE Advanced - 1999
JEE Advanced
Physics
sound
The oxidation number of sulphur in
$S_8 , S_2F_2, H_2S$
respectively, are
JEE Advanced - 1999
JEE Advanced
Chemistry
Oxidation Number
The normality of 0.3 M phosphorus acid
$(H_3PO_3)$
is
JEE Advanced - 1999
JEE Advanced
Chemistry
Mole concept and Molar Masses
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