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Recent questions tagged q103
ASK
To expel half the mass of air from a large flask at $27^{\large\circ}C$ , it must be heated to
jeemain
chemistry
physical-chemistry
class11
unit5
states-of-matter
ideal-gas-equation
medium
q103
asked
Mar 1, 2014
by
sharmaaparna1
1
answer
When a carbon atom is linked to four different groups it is said to be chiral carbon atom. when alpha hydrogen atom of an alkane is replaced by a functional group we get corresponding compound. IUPAC name for lowest molecular mas optically active alkene is
jeemain
chemistry
class11
organic-chemistry
q103
easy
basic-organic-chemistry
ch12
asked
Feb 27, 2014
by
meena.p
1
answer
Given: $CH_3COCH_3$ $\large\xrightarrow[\quad pyrolysis \quad]{700^{\large\circ}C}$ $A$ $\large\xrightarrow {CH_3COOH}$ $B$ $\large\xrightarrow {RCOOH} C$ based on these reactions. Write the structures of A and C
jeemain
chemistry
unit11
unit12
class12
organic-chemistry
oxygen
carboxylic-acids
q103
difficult
asked
Feb 26, 2014
by
sreemathi.v
1
answer
Length of transverse axes is
jeemain
math
class11
coordinate-geometry-conic -sections
hyperbola
ch11
q103
easy
asked
Feb 10, 2014
by
sreemathi.v
1
answer
Sum of n terms of series $\;\frac{1}{1^3}\;+\frac{1+2}{1^3+2^3}\;+\frac{1+2+3}{1^3+2^3+3^3}\;+....\;is$
jeemain
math
class11
ch9
sequences-and-series
easy
sum-of-n-terms-of-special-series
q103
asked
Jan 20, 2014
by
yamini.v
1
answer
Three isotopes of an element have mass numbers m,m+1 and m+2.If the mean mass number is ( m +0.5) then which of the following ratios may be accepted for m,(m+1) and (m+2) in that order
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
atomic-models-(rutherford-and-thomson)
q103
medium
asked
Jan 16, 2014
by
sreemathi.v
1
answer
If $f(x)=\left\{\begin{array}{1 1}\large\frac{\sin [x]}{[x]}&[x]\neq 0\\0&[x]=0\end{array}\right.$, where $[x]$ denotes the greatest integer less than or equal to x, then $\lim\limits_{x\to 0}f(x)$ equals
jeemain
math
ch13
limits and derivatives
derivatives
medium
q103
asked
Dec 31, 2013
by
sreemathi.v
1
answer
If position vector of the points $A,B,C,D$ are given by $7\hat i-4\hat j+7\hat k,\:\hat i-6\hat j+10\hat k,\:-\hat i-3\hat j+4\hat k\:\:and\:\:5\hat i-\hat j+5\hat k$ respectively, then $ABCD$ is ?
jeemain
math
class12
ch10
vector-algebra
easy
addition-of-vectors
q103
asked
Dec 30, 2013
by
rvidyagovindarajan_1
1
answer
Integrate : $\int \large \frac{e^{\Large a \sin ^{-1} x}}{\sqrt {1-x^2}}$$.dx$
jeemain
math
class12
ch7
integral-calculus
integration-by-subsitution
easy
q103
asked
Dec 19, 2013
by
meena.p
1
answer
Which one of the following is heterosporous ?
aipmt
modelpaper
biology
2008
q103
asked
Dec 18, 2013
by
thanvigandhi_1
0
answers
A ray of light travels from an optically denser medium towards rarer medium. The critical angle for the two media is 'C'. The maximum possible angle of deviation of the ray is :
jeemain
eamcet
physics
2010
q103
asked
Nov 17, 2013
by
thanvigandhi_1
1
answer
The surface energy of a liquid drop is E. It is sprayed into 1000 equal droplets. Then their surface energy is
jeemain
eamcet
physics
2011
q103
asked
Nov 2, 2013
by
thanvigandhi_1
1
answer
The room temperature is $ + 20^{\circ}C$ when outside temperature is $- 20^{\circ}C$. Room temperature is $ + 10^{\circ}C$ when outside temperature is $ - 40^{\circ}C$. The temperature of the radiator heating the room is
jeemain
eamcet
physics
2012
q103
asked
Oct 20, 2013
by
thanvigandhi_1
1
answer
The refractive index of a material of a plano concave lens is $\large\frac{5}{3}$, the radius of curvature is $0.3\;m$. The focal length of the lens in air is
jeemain
eamcet
physics
2008
q103
asked
Oct 18, 2013
by
meena.p
1
answer
The two lenses of an achromatic doublet should have :
jeemain
eamcet
physics
2009
q103
asked
Oct 11, 2013
by
meena.p
1
answer
Force constants of two wires A and B of the same material are K and 2K respectively. If the two wires are stretched equally , then the ratio of work done in stretching $ \bigg( \large\frac{W_A}{W_B} \bigg)$ is
jeemain
eamcet
physics
2013
q103
asked
Oct 10, 2013
by
thanvigandhi_1
1
answer
In an optical fibre, core and cladding were made with materials of refractive indices 1.5 and 1.414 respectively . To observe total internal reflection , what will be the range of incident angle with the axis of optical fibre?
jeemain
eamcet
physics
2010
q103
asked
Sep 30, 2013
by
meena.p
1
answer
During an adiabatic process, the pressure of a gas is proportional to the cube of its temperature. The value of $C_p/C_v$ for that gas is :
jeemain
eamcet
physics
2011
q103
asked
Sep 24, 2013
by
meena.p
1
answer
The two surfaces of a concave lens, made of glass of refractive index $1.5 $ have the same radii of curvature R. It is now immersed in a medium of refractive index $1.75$ then the lens,
jeemain
eamcet
physics
2013
q103
asked
Sep 17, 2013
by
meena.p
1
answer
The P.L of $(3D^{2}+D-14)y=13e^{2x}$ is
tnstate
class12
bookproblem
p239
objective
q103
modelpaper
mar-2006
mar-2007
asked
May 24, 2013
by
poojasapani_1
1
answer
The locus of foot of perpendicular from the focus to a tangent of the curve $ 16x^{2}+25y^{2}=400$ is
tnstate
class12
bookproblem
p275
objective
q103
modelpaper
mar-2009
asked
May 13, 2013
by
poojasapani_1
1
answer
True or False: If A,B and C are three independent events such that P(A)+P(B)=P(C)=p,then\[P(At\;least\;two\;of\;A,B,C\; occur)=3p^2-2p^3\]
cbse
class12
ch13
q103
p286
true-or-false
exemplar
sec-a
easy
math
asked
Jan 10, 2013
by
sreemathi.v
1
answer
True or False: If f is continuous on its domain D ,then | f | is also continuous on D.
cbse
class12
ch5
q103
p116
true-or-false
exemplar
sec-a
easy
math
asked
Jan 3, 2013
by
sreemathi.v
1
answer
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