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Recent questions tagged q120
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At low pressure , the Van der Waal's equation is written as
jeemain
chemistry
physical-chemistry
class11
unit5
states-of-matter
ideal-gas-equation
medium
q120
asked
Mar 3, 2014
by
sharmaaparna1
1
answer
Br has a low reactivity in $CH_2 =CH-Br$ because (i) of -M effect of bromine (ii) of more electro negativity of bromine (iii) of partial double bond character between $C-Br $ bond. (iv) of the +M effect of bromine.
jeemain
chemistry
class11
organic-chemistry
q120
medium
basic-organic-chemistry
ch12
asked
Feb 28, 2014
by
meena.p
1
answer
A new carbon-carbon bond formation is possible in
jeemain
chemistry
unit11
unit12
class12
organic-chemistry
oxygen
phenols
q120
easy
asked
Feb 27, 2014
by
sreemathi.v
1
answer
Find the equation of asymptotes for the hyperbola $\large\frac{x^2}{a^2}-\frac{y^2}{b^2}$$=1$?
jeemain
math
class11
coordinate-geometry-conic -sections
hyperbola
ch11
q120
medium
asked
Feb 10, 2014
by
sreemathi.v
1
answer
Harmonic mean of roots of equation $(5+\sqrt{2})\;x^2$ - $(4+\sqrt{2})\;x$ + $8$ + $2\;\sqrt{2}$ will be
jeemain
math
class11
ch9
sequences-and-series
easy
harmonic-progression
q120
asked
Jan 21, 2014
by
yamini.v
1
answer
An electron has a total energy of 2MeV.Calculate the effective mass of the electron in Kg and its speed .Assume rest mass of electron 0.511MeV
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q120
difficult
asked
Jan 16, 2014
by
sreemathi.v
1
answer
If $\overrightarrow v=2\hat i+\hat j-\hat k\:\:and\:\;\overrightarrow w=\hat i+3\hat k$ and $\overrightarrow u$ is a unit vector,then the maximum value of $ [\overrightarrow u\:\overrightarrow v\:\overrightarrow w]$ is ?
jeemain
math
class12
ch10
vector-algebra
medium
vector-product
q120
asked
Jan 13, 2014
by
rvidyagovindarajan_1
1
answer
Find the points of discontinuity of $y=\large\frac{1}{u^2+u-2}$ where $u=\large\frac{1}{x-1}$
jeemain
math
ch5
continuity-and-differentiability
continuity
medium
q120
asked
Dec 31, 2013
by
sreemathi.v
1
answer
Integrate :$\int \limits_0^{\frac{\pi}{4}}$$ \large\frac{\sin ^3 x}{\cos ^7 x}$$dx$
jeemain
math
class12
ch7
integral-calculus
integration-by-subsitution
easy
q120
asked
Dec 20, 2013
by
meena.p
1
answer
Haploids are more suitable for mutation studies than the diploids. This is because :
aipmt
modelpaper
biology
2008
q120
asked
Dec 18, 2013
by
thanvigandhi_1
0
answers
In the figures shown below :
jeemain
eamcet
physics
2010
q120
asked
Nov 18, 2013
by
thanvigandhi_1
0
answers
A zener diode voltage regulator operated in the range 120 - 180 V produces a constant supply of 110 V and 250 mA to the load. If the maximum current is to be equally shared between the load and zener, then the value of series resistance $(R_S)$ and load resistance (R_L)$ are :
jeemain
physics
eamcet
2011
q120
asked
Nov 4, 2013
by
thanvigandhi_1
1
answer
Which of the following statement is not correct when a junction diode is in forward bias?
jeemain
eamcet
physics
2008
q120
asked
Oct 20, 2013
by
meena.p
1
answer
A conductor has a non-uniform section as shown in the figure. A steady current is flowing through it. Then the drift speed of the electrons
jeemain
eamcet
physics
2012
q120
asked
Oct 20, 2013
by
thanvigandhi_1
1
answer
A wheel of radius 0.4 m can rotate freely about its axis as shown in the figure. A string is wrapped over its rim and a mass of 4 kg is hung. An angular acceleration of $8\;rad-s^{-2}$ is produced in it due to the torque. Then moment of inertia of the wheel is :
jeemain
eamcet
physics
2009
q120
asked
Oct 14, 2013
by
meena.p
0
answers
The emf of a cell E is 15 V as shown in the figure with an internal resistance of $ 0.5 \Omega $. Then the value of the current drawn from the cell is
jeemain
eamcet
physics
2013
q120
asked
Oct 13, 2013
by
thanvigandhi_1
1
answer
A transistor having a $\beta$ to $80$ has a change in base current of $250\; \mu A$ then the change in collector current is :
jeemain
eamcet
physics
2010
q120
asked
Oct 1, 2013
by
meena.p
1
answer
The sensitivity of a galvanometer is $60$ divisions /Amp. When a shunt is used, its sensitivity become 10 divisions/Amp. If the galvanometer is of resistance $20 \Omega$, the value of shunt used is :
jeemain
eamcet
physics
2011
q120
asked
Sep 24, 2013
by
meena.p
1
answer
Of the following, $NAND$ gate is
jeemain
eamcet
physics
2013
q120
asked
Sep 18, 2013
by
meena.p
1
answer
In the set of real numbers $R,$ an operation $^\ast $is defined by $a^\ast b=\sqrt{a^{2}+b^{2}}.$ Then the value of $(3^\ast4)^\ast 5$ is
tnstate
class12
bookproblem
p241
objective
q120
asked
May 27, 2013
by
poojasapani_1
1
answer
The area of the triangle formed by the tangent at any point on the rectangular hyperbola $xy=72$ and its asymptotes is
tnstate
class12
bookproblem
p277
objective
q120
asked
May 14, 2013
by
poojasapani_1
1
answer
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