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Recent questions tagged q62
Questions
Consider a wire carrying a steady current , I placed in a uniform magnetic field $ \overrightarrow B$ perpendicular to its length . Consider the charge inside the wire. It is known that magnetic forces do not work. This implies the
cbse
class12
physics
ch-4
sec-b
q62
ncert
medium
asked
Jul 29, 2015
by
meena.p
1
answer
How does the pole strength of each part of a bar magnet change if it is cut into two equal pieces transverse to its length ?
cbse
class12
physics
ch-5
sec-a
q62
ncert
medium
asked
Jul 20, 2015
by
meena.p
1
answer
Draw V-I graph for ohmic and non- ohmic materials give one example each
cbse
class12
physics
ch-3
sec-a
q62
difficult
asked
Jul 6, 2015
by
meena.p
1
answer
Consider a uniform electric field $E=3 \times 10 \times 10^3 \hat i N/C$. What is the flase through the same square if the normal to its plane makes an angle of $60^{\circ}$ with the x- axis ?
cbse
class12
physics
ch-1
sec-a
q62
medium
asked
Apr 27, 2015
by
meena.p
1
answer
In the reaction $H_3BO_3$$ _{\overrightarrow{375k}} A$$ _{\overrightarrow{475k}} B$$ _{\overrightarrow{red\: heat}} C$ The compounds A, B and C respectively are
jeemain
chemistry
inorganic-chemistry
class11
ch11
p-block-elements
group-13
boron-family
medium
q62
asked
Jul 27, 2014
by
thanvigandhi_1
1
answer
If $\tan A=\large\frac{1-\cos B}{\sin B}$,then $\tan 2A$=_______
cbse
math
class11
ch3
trigonometric-functions
exemplar
q62
sec-c
difficult
asked
Apr 22, 2014
by
sreemathi.v
1
answer
If Z is a compressibility factor, van der Waals equa- tion at low pressure can be written as:
jeemain
jeemain-2014
chemistry
q62
medium
asked
Apr 7, 2014
by
sreemathi.v
1
answer
Which of the following represents peptide linkage?
jeemain
aipmt
chemistry
biomolecules
organic-chemistry
cbse
class12
unit16
medium
q62
asked
Mar 29, 2014
by
thanvigandhi_1
1
answer
In conversion of limestone to lime, \[\] $CaCO_3(s) \rightarrow CaO(s) + CO_2(g)$ \[\] the values of $ \Delta H^{\circ}\: and\: \Delta S^{\circ}$ are 179 kJ/mol and 160.2 J/K respectively at 298 K and 1 bar. Assuming that $ \Delta H^{\circ} \: and \: \Delta S^{\circ}$ do not change with temperature, temperature above which conversion of limestone to lime will be spontaneous is
jeemain
physics
thermodynamics
cbse
class11
class12
q62
medium
asked
Mar 18, 2014
by
thanvigandhi_1
1
answer
Pyrolusite is a/an
jeemain
cbse
chemistry
class12
unit6
general-principals-and-processes-of-isolation-of-metals
q62
difficult
asked
Mar 18, 2014
by
meena.p
1
answer
Among the following polymers the intermolecular forces are weaker in
jeemain
aipmt
chemistry
cbse
unit5
class12
organic-chemistry-polymers
q62
medium
asked
Mar 12, 2014
by
thanvigandhi_1
1
answer
Which of the following has highest bond length
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
molecular-orbital-theory
q62
medium
asked
Mar 6, 2014
by
sreemathi.v
1
answer
What could be the product for the following reaction?
jeemain
chemistry
unit13
class12
organic-chemistry
nitrogen
diazonium-salts
q62
difficult
asked
Mar 4, 2014
by
sreemathi.v
1
answer
Which of the following compounds will show geometrical isomerism?(i) 2-butene (ii) Propene (iii) 1-phenylpropene (iv) 2-methyl-2-butene
jeemain
chemistry
class11
organic-chemistry
q62
difficult
basic-organic-chemistry
ch12
asked
Feb 25, 2014
by
meena.p
2
answers
The product of the below reaction:
jeemain
chemistry
unit11
unit12
class12
organic-chemistry
oxygen
aldehyde-and-ketones
q62
difficult
asked
Feb 24, 2014
by
sreemathi.v
1
answer
In Victor Mayers experiment 0.23g of a volatile solute displaced air which measures 112mL at NTP .Calculate the vapour density and molecular weight of substance
jeemain
chemistry
physical-chemistry
class11
unit5
states-of-matter
liquid-state
medium
q62
asked
Feb 20, 2014
by
sharmaaparna1
1
answer
EMF of following cell is 0.67V at 298K $Pt/H_2(1atm)/H^+(pH=X)\parallel KCl(1N)/Hg_2Cl_2(s)/Hg$.Calculate pH of anode compartment.Given : $E^0_{Cl^-/Hg^2Cl_2/Hg}=0.28V$.
jeemain
chemistry
q62
difficult
physical-chemistry
class12
ch3
electrochemistry
asked
Feb 17, 2014
by
sreemathi.v
1
answer
Find curve in $x-y$ plane which passes through$(1,1)$ . Intersects line $y=x$ at right angle at that point and satisfies $xy''+2y''=0$
jeemain
math
class12
ch9
differential-equations
linear-differential-equations
q62
medium
asked
Feb 6, 2014
by
meena.p
1
answer
Find the equation of tangent to the parabola $(y-6)^2=4a(x-p)$ at $(at^2,2at)$?
jeemain
math
class11
coordinate-geometry-conic -sections
parabola
ch11
q62
medium
asked
Feb 6, 2014
by
sreemathi.v
1
answer
A molecule that cannot be superimposed on its mirror image is said to exhibit which of the following?
jeemain
chemistry
class12
coordination-compounds
unit9
q62
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
The highest oxidation state of will be
jeemain
chemistry
class12
d-and-f-block-elements
unit8
q62
difficult
asked
Jan 30, 2014
by
sreemathi.v
1
answer
Truth table given below represents
jeemain
physics
class12
unit19
ch14
q62
medium
logic-gates
semiconductor-electronics
asked
Jan 28, 2014
by
meena.p
1
answer
$BeH_2$ and $MgH_2$ are prepared using the reagent
jeemain
chemistry
class11
s-block-elements
unit10
q62
medium
asked
Jan 28, 2014
by
sreemathi.v
1
answer
If mode of a data is 27 and mean is 24, then median is
jeemain
math
cbse
class11
statistics
easy
measures-of-dispersion-(median)
q62
asked
Jan 25, 2014
by
thanvigandhi_1
1
answer
In acidic solution $H_2O_2$ oxidises $Hg$ to
jeemain
chemistry
class11
hydrogen
unit9
q62
medium
asked
Jan 24, 2014
by
sreemathi.v
1
answer
Fish die in water bodies polluted by sewage due to
jeemain
chemistry
class11
environmental-chemistry
unit14
q62
medium
asked
Jan 21, 2014
by
sreemathi.v
1
answer
In a multi-electron atom,which of the following orbitals described by the three quantum numbers will have the same energy in the absence of magnetic field.\[\] $\begin{array}{1 1}(i)\;n=1,l=0,m=0\\(ii)\;n=2,l=0,m=0\\(iii)\;n=2,l=1,m=1\\(iv)\;n=3,l=2,m=1\\(v)\;n=3,l=2,m=0\end{array}$
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q62
easy
asked
Jan 13, 2014
by
sreemathi.v
1
answer
The equation of the plane containing the lines $\overrightarrow r=\overrightarrow a_1+\lambda\overrightarrow b\:\:and\:\:\overrightarrow r=\overrightarrow a_2+\mu\overrightarrow b$ is ?
jeemain
math
class12
ch11
3d-geometry
equations-of-planes
medium
q62
asked
Jan 4, 2014
by
rvidyagovindarajan_1
1
answer
Find the value of n such that $\frac{5^{(n+1)}+17^{(n+1)}}{5^n+17^n}$ is the AM of 5 and 17
jeemain
math
class11
ch9
sequences-and-series
easy
arithmetic-progression
q62
asked
Jan 3, 2014
by
yamini.v
1
answer
If $\lim\limits_{x\to 0}\large\frac{\sin px}{\tan 3x}$$=4$ then value of p is
jeemain
math
class11
ch13
limits-and-derivatives
limits-of-trigonometric-functions
easy
q62
asked
Dec 24, 2013
by
sreemathi.v
1
answer
Integrate : $\int \limits_0^{\frac{\pi}{2}} \large\frac{\phi(x)}{\phi (\Large\frac{\pi}{2}-x)+\phi (x)}$$dx$
jeemain
math
class12
ch7
integral-calculus
integration-using-partial-fractions
medium
q62
asked
Dec 17, 2013
by
meena.p
1
answer
Equal volumes of three acid solutions of pH 3, 4 and 5 are mixed in a vessel. What will be the $H^+$ ion concentration in the mixture ?
aipmt
modelpaper
chemistry
2008
q62
asked
Dec 16, 2013
by
thanvigandhi_1
1
answer
A male child is colour blind and his blood group is " AB " . Identify the parents from the following pairs :
jeemain
eamcet
biology
2002
q62
asked
Dec 9, 2013
by
thanvigandhi_1
0
answers
When a blood group of a person is not known, which type of blood can be transfused to him in an emergency ?
jeemain
eamcet
biology
2001
q62
asked
Dec 5, 2013
by
thanvigandhi_1
1
answer
The value of $a$ for which the volume of the parallelopiped formed by the vectors $\hat i+a\hat j+\hat k,\:\:\hat j+a\hat k,\:\:a\hat i+\hat k$ is minimum is ?
jeemain
math
class12
ch10
vector-algebra
medium
vector-product
q62
asked
Nov 28, 2013
by
rvidyagovindarajan_1
1
answer
Refer to the below equation :
jeemain
chemistry
unit15
p-block-elements
q62
difficult
asked
Nov 28, 2013
by
sreemathi.v
1
answer
The dissociation constant of $H_2S$ and $HS^-$ are respectively $10^{-7}$ and $10^{-13}$. The $pH$ of 0.1 M aqueous solution of $H_2S$ will be
jeemain
aipmt
equilibrium
chemistry
medium
q62
biology
asked
Nov 27, 2013
by
mosymeow_1
1
answer
In frog innominate vein is formed by the union of the veins :
jeemain
eamcet
biology
2000
q62
asked
Nov 26, 2013
by
thanvigandhi_1
0
answers
The animal with epipubic bones and a chorioallontoic placenta is :
jeemain
eamcet
biology
2010
q62
asked
Nov 14, 2013
by
thanvigandhi_1
0
answers
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