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Recent questions tagged q29
Questions
An open box with square base is to be made of a given quantity of card board of area $ 36 sq.metre.$ Find the maximum volume of the box.
cbse
class12
ch6
q29
p137
exemplar
medium
sec-c
math
asked
Feb 4, 2014
by
rvidyagovindarajan_1
1
answer
Find the equation of a straight line on which the perpendicular from the origin makes an angle of $45^{\large\circ}$ with x-axis and which forms a triangle of area 18 sq.units with the coordinate axes
jeemain
math
class11
coordinate-geometry
straight-lines
equations-of-a-line
ch10
q29
difficult
asked
Feb 4, 2014
by
sreemathi.v
1
answer
General solution of differential equation ; $\large\frac{ydy}{xdx}+\frac{2(x^2+y^2)-1}{(x^2+y^2+1)}=0$
jeemain
math
class12
ch9
differential-equations
solving-using-separation-of-variables
q29
medium
asked
Feb 4, 2014
by
meena.p
1
answer
Which one of the following has largest no of isomers
jeemain
chemistry
class12
coordination-compounds
unit9
q29
medium
asked
Jan 31, 2014
by
sreemathi.v
1
answer
Let Potential at A and B be $V_A$ and $V_B$ respectively . In the given circuit. If the effective resistance is found to be $5 \Omega$ Then
jeemain
physics
class12
unit19
ch14
q29
difficult
junction-diodes
semiconductor-electronics
asked
Jan 28, 2014
by
meena.p
1
answer
When magnesium burns in steam,the formulae of the products are
jeemain
chemistry
class11
s-block-elements
unit10
q29
easy
asked
Jan 27, 2014
by
sreemathi.v
1
answer
The A.M of 9 items is 15. If one more item is added to this series, the A.M becomes 16. The value of 10th item is
jeemain
math
cbse
class11
statistics
medium
measures-of-dispersion-(a.m)
q29
asked
Jan 25, 2014
by
thanvigandhi_1
1
answer
Let f : $R \rightarrow R$ be a function defined by $f(x) = min \{ x+1, |x| + 1 \}$. Then which of the following statements is true?
jeemain
math
mathematical-reasoning
class11
ch14
difficult
statements
q29
asked
Jan 24, 2014
by
thanvigandhi_1
1
answer
The O-O bond is not present in
jeemain
chemistry
class11
hydrogen
unit9
q29
easy
asked
Jan 23, 2014
by
sreemathi.v
1
answer
Given the following statement: Some paints are red. AIl red which are paints are yellow. Now, consider the claims: C1 :C1: Some paints are yellow. C2: Some yellow are red. Now, mark according to the rules - \[\] i) Mark A if C1 is true, ii) Mark B if C2 is true,iii) Mark C if neither C1 nor C2 is true and iv) Mark D if both C1 and C2 are true.
jeemain
math
mathematical-reasoning
class11
unit14
easy
q29
asked
Jan 21, 2014
by
thanvigandhi_1
0
answers
Which of the following is a true statement?
jeemain
math
mathematical-reasoning
class11
ch14
medium
statements
q29
asked
Jan 20, 2014
by
thanvigandhi_1
1
answer
The level of CO gas in air that causes immediate death is
jeemain
chemistry
class11
environmental-chemistry
unit14
q29
easy
asked
Jan 20, 2014
by
sreemathi.v
1
answer
Which electronic level would allow a H-atom to absorb a photon but not to emit a photon ?
jeemain
chemistry
physical-chemistry
class11
unit2
atomic-structure
quantum-mechanical-model
q29
easy
asked
Jan 10, 2014
by
sreemathi.v
1
answer
$1.575g$ of oxalic acid $(COOH)_2xH_2O$ are dissolved in water and the volume made upto 250ml.On titration 16.68ml of this solution requires 25ml of N/15 NaOH solution for complete neutralization.
jeemain
chemistry
physical-chemistry
class11
unit1
some-basic-concepts-in-chemistry
stoichiometry
q29
difficult
asked
Jan 7, 2014
by
sreemathi.v
1
answer
The chance of throwing a total of 3 or 5 or 11 wih two dice is
jeemain
math
cbse
class11
probability
random-experiements
easy
q29
asked
Jan 6, 2014
by
thanvigandhi_1
1
answer
If a$\xi\;b$ are two positive integers,x is their AM and $y\;\xi\;z$ are two GMs then calculate the value of $\frac{y^3+z^3}{xyz}$
jeemain
math
class11
ch9
sequences-and-series
easy
relationship-between-ap-and-gm
q29
asked
Jan 2, 2014
by
yamini.v
1
answer
The point on $x - axis $ which is equidistant from points $(4,3,1)\:\: and\:\: (-2,-6,-2)$ is?
jeemain
math
class11
ch14
3d-geometry
easy
q29
asked
Dec 30, 2013
by
rvidyagovindarajan_1
0
answers
If function $f(x)$ is differentiable at $x=a$ then $\lim\limits_{x\to a}\large\frac{x^2f(a)-a^2f(x)}{x-a}$ is
jeemain
math
class12
ch5
continuity-and-differentiability
differentiability
easy
q29
asked
Dec 23, 2013
by
sreemathi.v
1
answer
A wire of a certain material is stretched slowly by ten percent. Its new resistance and specific resistance become respectively :
aipmt
modelpaper
physics
2008
q29
asked
Dec 15, 2013
by
thanvigandhi_1
0
answers
Integrate $I= \int \limits_{-\pi}^{\pi} \large\frac{\cos ^2 x}{1+a^x}$$dx$
jeemain
math
class12
ch7
integral-calculus
definite-integrals-as-limit-of-sum
easy
q29
asked
Dec 13, 2013
by
meena.p
1
answer
$CuSO_4$ solution is not stable in $Zn$ container because of
jeemain
chemistry
unit8
redox-reactions-and-electrochemistry
q29
medium
asked
Dec 11, 2013
by
sreemathi.v
1
answer
Which of the pair is linear in shape and with three lone pairs?
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
vsepr(valence-shell-electron-pair-repulsion)theory
q29
medium
asked
Dec 9, 2013
by
sreemathi.v
1
answer
Natural auxins are synthesised from the amino acid :
jeemain
eamcet
biology
2002
q29
asked
Dec 8, 2013
by
thanvigandhi_1
0
answers
Which is the least likely protonation site in the conjugated alkene given below:
jeemain
chemistry
unit21
organic-chemistry
q29
difficult
basic-organic-chemistry
class11
ch12
asked
Dec 5, 2013
by
sreemathi.v
3
answers
Refer to the below equation :
jeemain
chemistry
unit21
organic-chemistry
q29
medium
basic-organic-chemistry
class11
ch12
asked
Dec 3, 2013
by
sreemathi.v
1
answer
'Richmond Lung Effect' deals with :
jeemain
eamcet
biology
2001
q29
asked
Dec 1, 2013
by
thanvigandhi_1
0
answers
The correct sequence is : For -Acidic Nature
jeemain
chemistry
unit15
p-block-elements
q29
easy
asked
Nov 27, 2013
by
sreemathi.v
1
answer
Embryo culture in angiosperms was first tried by :
jeemain
eamcet
biology
2000
q29
asked
Nov 25, 2013
by
thanvigandhi_1
0
answers
In the classification of plants, the presence of the following is the primitive character
jeemain
eamcet
biology
1999
q29
asked
Nov 23, 2013
by
thanvigandhi_1
0
answers
Let $P=[a_{ij}]$ be a $3\times 3$ matrix and let $Q=[b_{ij}]$ where $b_{ij}=2^{i+j}a_{ij}$ for $1\leq i,j\leq 3$.If the determinant of P is 2,then the determinant of the matrix $Q$ is
jeemain
math
ch4
class12
determinants
q29
evaluate-determinants
easy
asked
Nov 20, 2013
by
sreemathi.v
1
answer
The positive integer value of $n>3$ satisfying the equation $\large\frac{1}{\sin\big(\Large\frac{\pi}{n}\big)}=\frac{1}{\sin\big(\Large\frac{2\pi}{n}\big)}+\frac{1}{\sin\big(\Large\frac{3\pi}{n}\big)}$ is
jeemain
math
class11
ch3
trigonometric-functions
q29
trignometric-equations
difficult
asked
Nov 18, 2013
by
sreemathi.v
1
answer
Given $NaSO_4.10H_2O (s) \rightleftharpoons NaSO_4 (s) + 10H_2O (g) ; K_p =4.08 \times 10^{-25} $ and vapour pressure of water at $0^\circ$C = 4.58 Torr. At what relative humidity will $Na_2SO_4$ be deliquescent when exposed to the air at $0^\circ$C ?
jeemain
aipmt
chemistry
equilibrium
difficult
q29
biology
asked
Nov 15, 2013
by
mosymeow_1
1
answer
$\sin^{-1} \large\frac{4}{5}$$+2 \tan ^{-1} \large\frac{1}{3}$ is equal to :
jeemain
eamcet
math
2005
q29
asked
Nov 12, 2013
by
meena.p
1
answer
Study the following lists
jeemain
eamcet
biology
2010
q29
asked
Nov 11, 2013
by
thanvigandhi_1
0
answers
Which of the following compounds is soluble in benzene but almost insoluble in water?
jeemain
eamcet
chemistry
2005
q29
asked
Nov 11, 2013
by
meena.p
1
answer
If $|\overrightarrow a|=3,\:|\overrightarrow b|=\large\frac{\sqrt 2}{3}$, then $\overrightarrow a\times\overrightarrow b$ is a unit vector if the angle between $\overrightarrow a$ and $\overrightarrow b$ is ?
jeemain
math
class12
ch10
vector-algebra
easy
addition-of-vectors
q29
asked
Nov 8, 2013
by
rvidyagovindarajan_1
1
answer
A 4 $\mu F$ capacitor is charged by a 200 V battery. It is then disconnected from the supply and is connected to another uncharged $2\; \mu F$ capacitor. During the process, loss of energy (in J) is :
jeemain
eamcet
physics
2005
q29
asked
Nov 7, 2013
by
meena.p
1
answer
$e^{\log (\cos h^{-1}2)}$ is equal to :
jeemain
eamcet
math
2006
q29
asked
Nov 6, 2013
by
meena.p
1
answer
20ml of 0.2M $Al_2(sO_4)_3$ is mixed with 20ml of 0.6M $BaCl_2$.Calculate the concentration of each ion in solution.
jeemain
chemistry
physical-chemistry
class11
unit1
some-basic-concepts-in-chemistry
stoichiometry
q29
easy
asked
Oct 31, 2013
by
sreemathi.v
1
answer
Observe the following statements:
jeemain
eamcet
chemistry
2006
q29
asked
Oct 30, 2013
by
meena.p
1
answer
The bob of simple pendulum is hanging vertically down from a fixed identical bob by means of a string of length l. If both bobs are charged with a charge q each , time period of the pendulum is : (ignore the radii of the bobs)
jeemain
eamcet
physics
2006
q29
asked
Oct 29, 2013
by
meena.p
1
answer
Study the following lists
jeemain
eamcet
biology
2011
q29
asked
Oct 26, 2013
by
thanvigandhi_1
1
answer
The value of x, where $ x > 0 $ and $\tan \bigg(\sec^{-1}\bigg(\large\frac{1}{x}\bigg)\bigg)$$=\sin (\tan ^{-1}2)$ is
jeemain
eamcet
math
2007
q29
asked
Oct 24, 2013
by
meena.p
1
answer
A compound has an empirical formula $C_2H_4O$.An independent analysis gave a value of 132.16 for its molecular mass.What is the correct molecular formula ?
jeemain
chemistry
physical-chemistry
class11
unit1
some-basic-concepts-in-chemistry
percentage-composition
q29
medium
asked
Oct 24, 2013
by
sreemathi.v
1
answer
A certain mass of a gas occupies a volume of $2L$ at STP. To what temperature the gas must be heated to double its volume, keeping the pressure constant ?
jeemain
eamcet
chemistry
2007
q29
asked
Oct 24, 2013
by
meena.p
1
answer
Along the x-axis, three charges $\large\frac{q}{2},$$-q$ and $\large\frac{q}{2}$ are placed at $x=0,x=a$ and $x=2a$ respectively. The resultant electric potential at a point P located at a distance r from the charge -q( a << r) is ($ \varepsilon _0 $ is the permittivity of free space)
jeemain
eamcet
physics
2007
q29
asked
Oct 23, 2013
by
meena.p
1
answer
If $\sin ^{-1} \bigg(\large\frac{3}{x}\bigg)$$+ \sin ^{-1} \bigg(\large\frac{4}{x}\bigg)=\large\frac{\pi}{2}$ then $x=$
jeemain
eamcet
math
2008
q29
asked
Oct 17, 2013
by
meena.p
1
answer
Study the following lists
jeemain
eamcet
biology
2012
q29
asked
Oct 16, 2013
by
thanvigandhi_1
1
answer
The number of real solutions of $\tan^{-1}\sqrt{x(x+1)}+\sin^{-1}\sqrt{x^2+x+1}=\large\frac{\pi}{2}$ is
jeemain
math
class12
ch3
inverse-trigonometric-functions
q29
inverse-trignometric-properties
medium
asked
Oct 15, 2013
by
sreemathi.v
1
answer
In a $\Delta ABC \; \large\frac{(a+b+c)(b+c-a)(c+a-b)(a+b-c)}{4b^2c^2}$$=$
jeemain
eamcet
math
2009
q29
asked
Oct 9, 2013
by
meena.p
1
answer
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