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Recent questions tagged q16
Questions
Integrate: $\int \limits _0^{3 \pi} \large\frac{|\sin x|}{\sin x}$$dx$
jeemain
math
class12
ch7
integral-calculus
integration-using-partial-fractions
easy
q16
asked
Dec 12, 2013
by
meena.p
1
answer
$E^o_{Zn^{+2}/Zn}=-0.76V$.So $E^o_{Zn/Zn^{+2}}=$?
jeemain
chemistry
unit8
redox-reactions-and-electrochemistry
q16
easy
asked
Dec 10, 2013
by
sreemathi.v
1
answer
Octahedral molecular shape exist in
jeemain
chemistry
physical-chemistry
class11
unit4
chemical-bonding-and-molecular-structure
hybridization
q16
medium
asked
Dec 9, 2013
by
sreemathi.v
1
answer
An example of physiological xerophyte is :
jeemain
eamcet
biology
2002
q16
asked
Dec 6, 2013
by
thanvigandhi_1
1
answer
Refer to the below reaction:
jeemain
chemistry
unit21
organic-chemistry
q16
difficult
basic-organic-chemistry
class11
ch12
asked
Dec 4, 2013
by
sreemathi.v
1
answer
Refer to the below reaction:
jeemain
chemistry
unit21
organic-chemistry
q16
medium
basic-organic-chemistry
class11
ch12
asked
Dec 3, 2013
by
sreemathi.v
1
answer
The great Bengal famine of 1943 was due to
jeemain
eamcet
biology
2001
q16
asked
Dec 1, 2013
by
thanvigandhi_1
0
answers
Lithium doesn't form Alum
jeemain
chemistry
unit15
p-block-elements
q16
easy
asked
Nov 26, 2013
by
sreemathi.v
1
answer
If $A^k=0$ for some value of k.$(I-A)^P=I+A+A^2+....+A^{k-1}$ thus P is
jeemain
math
class12
ch4
determinants
q16
adjoint-and-inverse
difficult
asked
Nov 25, 2013
by
sreemathi.v
1
answer
Which fungus causes black coal-like spots of Anthracnose in plants ?
jeemain
eamcet
biology
2000
q16
asked
Nov 24, 2013
by
thanvigandhi_1
0
answers
Tyloses are observed in the lumen of
jeemain
eamcet
biology
1999
q16
asked
Nov 22, 2013
by
thanvigandhi_1
0
answers
If $C=2\cos \theta$ then the value of the determinant $\Delta=\begin{vmatrix}c&1&0\\1&c&1\\6&1&c\end{vmatrix}$ is
jeemain
math
class12
ch4
determinants
q16
evaluate-determinants
medium
asked
Nov 22, 2013
by
sreemathi.v
1
answer
If $\omega(\neq 1)$ is a cube root of unity,then $\begin{vmatrix}1 &1+i+\omega^2&\omega^2\\1-i&-1&\omega^2-1\\-i&-i+\omega-1&-1\end{vmatrix}$=
jeemain
math
ch3
class12
matrices
q16
elementary-operation-transformation)-of-a-matrix
easy
asked
Nov 20, 2013
by
sreemathi.v
1
answer
What is the Equilibrium constant for the formation of one mole of gaseous $HI$ from the $H_2(g)$ and $I_2(g)$?
jeemain
aipmt
chemistry
equilibrium
difficult
q16
biology
asked
Nov 15, 2013
by
mosymeow_1
1
answer
A metallic solid sphere is rotating about its diameter as axis of rotation . If the temperature is increased by $200^{\circ}C$, the percentage increase in its moment of inertia is : (Coefficient of linear expansion of the metal $=10^{-5/^{\circ}C}$)
jeemain
eamcet
physics
2004
q16
asked
Nov 13, 2013
by
meena.p
1
answer
The roots of the equation $x^3-3x-2=0$ are :
jeemain
eamcet
math
2005
q16
asked
Nov 11, 2013
by
meena.p
1
answer
Closely and compactly arranged fundamental tissue is not found in :
jeemain
eamcet
biology
2010
q16
asked
Nov 10, 2013
by
thanvigandhi_1
0
answers
Which of the following is a linear molecule ?
jeemain
eamcet
chemistry
2005
q16
asked
Nov 8, 2013
by
meena.p
0
answers
The relation between the coefficient of real expansion $(\gamma_r)$ and coefficient of apparent expansion $(\gamma _a)$ of a liquid and the coefficient of linear expansion $(\alpha _g)$ of the material of the container is :
jeemain
eamcet
physics
2005
q16
asked
Nov 7, 2013
by
meena.p
1
answer
If $\alpha,\beta, \gamma$ are the roots of the equation $x^3-6x^2+11x+6=0,$ then $ \sum \alpha^2 \beta+ \sum \alpha \beta^2$ is equal to :
jeemain
eamcet
math
2006
q16
asked
Nov 5, 2013
by
meena.p
1
answer
If $\overrightarrow a=\hat i-\hat k,\:\overrightarrow b=x\hat i+\hat j+(1-x)\hat k\:and\:\overrightarrow c=y\hat i+x\hat j+(1+x-y)\hat k$, then $[\overrightarrow a\:\overrightarrow b\:\overrightarrow c]$ depends on?
jeemain
math
class12
ch10
vector-algebra
easy
vector-product
q16
asked
Nov 4, 2013
by
rvidyagovindarajan_1
1
answer
$AB$ is an ionic solid. The ionic radii of $A^{+}$ and $B^{-}$ are respectively $r_c$ and $r_a$. Lattice energy of AB is proportional to :
jeemain
eamcet
chemistry
2006
q16
asked
Oct 30, 2013
by
meena.p
1
answer
How many EDTA (ethylene diamine tetracetic acid)molecules are required to make an octahedral complex with a $Ca^{2+}$ ion ?
sat
chemistry
stoichiometry and the mole concept
jeemain
physical-chemistry
class11
unit1
some-basic-concepts-in-chemistry
mole-concept-and-molar-masses
q16
easy
asked
Oct 30, 2013
by
sreemathi.v
2
answers
Two block of masses 1 kg and 2 kg are connected by a metal wire going over a smooth in figure. The breaking stress of the metal is $2 \times 10^{9} \;N/m^2$. What should be the minimum radius of the wire used if it is not to break? Take $g=10\;ms^2$
jeemain
eamcet
physics
2006
q16
asked
Oct 29, 2013
by
meena.p
1
answer
Single cell protein produced from one of the following microbes is rich in methionine :
jeemain
eamcet
biology
2011
q16
asked
Oct 26, 2013
by
thanvigandhi_1
1
answer
If 1,2,3 and 4 are the roots of the equation $x^4+ax^3+bx^2+cx+d=0$, then $a+2b+c$ is equal to
jeemain
eamcet
math
2007
q16
asked
Oct 24, 2013
by
meena.p
1
answer
Which of the following statements is correct?
jeemain
eamcet
chemistry
2007
q16
asked
Oct 23, 2013
by
meena.p
0
answers
One gram of a chloride was found to contain 0.835g of chlorine.Its vapor density is 85.Calculate its molecular formula
jeemain
chemistry
physical-chemistry
class11
unit1
some-basic-concepts-in-chemistry
atomic-and-molecular-masses
q16
medium
asked
Oct 23, 2013
by
sreemathi.v
1
answer
A clock which keeps correct times at $20^{\circ}C$, is subjected to $40^{\circ}$. If coefficient of linear expansion of the pendulum is $12 \times 10^{-6}/^{\circ}$ C. How much will it gain or lose time ?
jeemain
eamcet
physics
2007
q16
asked
Oct 22, 2013
by
meena.p
0
answers
If $A+B+C=\pi$ then $\cos^2A+\cos^2B+\cos^2C$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q16
trignometric-equations
easy
asked
Oct 21, 2013
by
sreemathi.v
1
answer
The cubic equation whose roots are thrice to each of the roots of $x^3+2x^2-4x+1=0$ is
jeemain
eamcet
math
2008
q16
asked
Oct 16, 2013
by
meena.p
1
answer
Which of the following character is not associated in a plant having a single cotyledon in a seed, tendrillar stipules and adventitious root system?
jeemain
eamcet
biology
2012
q16
asked
Oct 16, 2013
by
thanvigandhi_1
1
answer
If $A+B+C=\pi$ then $\sin 2A+\sin 2B+\sin 2C$ is equal to
jeemain
math
class11.ch3
trigonometric-functions
q16
trignometric-identities
medium
asked
Oct 14, 2013
by
sreemathi.v
1
answer
If one of the roots of $\begin {vmatrix} 3 & 5 & x \\ 7 & x & 7 \\ x & 5 & 3 \end {vmatrix}=0$ is $-10,$ then the other roots are :
jeemain
eamcet
math
2009
q16
asked
Oct 9, 2013
by
meena.p
1
answer
The numerical value of $\tan 20^{\circ}\tan 80^{\circ}\cot 50^{\circ}$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q16
angles
easy
asked
Oct 7, 2013
by
sreemathi.v
1
answer
A cylindrical vessel filled with water is released on an in inclined plane of angle $\theta$ as shown. The coefficient of friction of surfaces is $(\mu ( < \tan \theta)$. Then the contact angle made by the surface of water with the incline is
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q16
medium
asked
Oct 3, 2013
by
meena.p
1
answer
Study the following lists
jeemain
eamcet
biology
2013
q16
asked
Oct 3, 2013
by
thanvigandhi_1
1
answer
$\begin {vmatrix} x & x^2 & 1+x^3 \\ y & y^2 & 1+y^3 \\ z & z^2 & 1+z^3 \end {vmatrix}=0,x \neq y \neq z=>1+xyz=$
jeemain
eamcet
math
2010
q16
asked
Sep 26, 2013
by
meena.p
1
answer
Let $f(0)=1,f(0.5)=\large\frac{5}{4}$$, f(1)=2,f(1.5)=\large\frac{13}{4}$ and $f(2)=5$. Using Simpson's rule, $\int \limits_0^{2} f(x) dx=$
jeemain
eamcet
math
2011
q16
asked
Sep 20, 2013
by
meena.p
1
answer
$\begin{vmatrix} x+2 & x+3 & x+5 \\ x+4 & x+6 & x+9 \\ x+8 & x+11 & x+15 \end{vmatrix}=$
jeemain
eamcet
math
2013
q16
asked
Sep 14, 2013
by
meena.p
1
answer
The maximum value of $\large\frac{\log x}{x}$ in $0 < x < \infty $ is .................. .
jeemain
eamcet
math
1991
fitb
q16
asked
Sep 13, 2013
by
meena.p
0
answers
The circles $x^2+y^2-4x+6y+8=0$ and $x^2+y^2-10x -6y+14=0,$ touch:
jeemain
eamcet
math
1991
q16
asked
Sep 13, 2013
by
meena.p
1
answer
Which of the following oxides of nitrogen is anhydride of $HNO_3$ ?
jeemain
eamcet
chemistry
1991
q16
asked
Sep 11, 2013
by
meena.p
1
answer
If the escape velocity on earth is 11.2 km/sec, its value for a planet having double the radius and 8 times the mass of earth is .............. m/s.
jeemain
eamcet
physics
1991
fitb
q16
asked
Sep 11, 2013
by
meena.p
1
answer
$\phi$ of vibration of any particle in a standing wave produced along a stretched string depends on:
jeemain
eamcet
physics
1991
q16
asked
Sep 10, 2013
by
meena.p
1
answer
Which of the following statements correctly describes E1 reaction of alkyl halide?
jeemain
chemistry
unit22
organic-chemistry
halogens
q16
medium
asked
Sep 3, 2013
by
sreemathi.v
1
answer
Planet Neptune travels around the sun with a period of 165 years. Find the ratio of $\large\frac{R_2}{R_1}$ where $R_2$ radius of Neptune orbit and $R_1$ radius of earth , both being considerd circular.
jeemain
physics
class11
unit6
gravitation
q16
medium
asked
Aug 10, 2013
by
meena.p
1
answer
A ball is moving with velocity 3m/s towards a heavy wall which is moving towards the ball with speed 1m/s. Assuming collision to be elastic, find the velocity of ball immediately after collision
jeemain
physics
class11
ch6
collisions
elastic-collision
head-on-collision
work-power-energy
q16
easy
asked
Jul 17, 2013
by
meena.p
1
answer
A ball of mass m strikes an identical ball at rest with speed of 10 m/s. After collision which is assumed perfectly elastic the first ball is found to move with speed 8 m/s. Speed of $2 ^{nd}$ ball and angle between the paths of two balls after collision is
jeemain
physics
class11
unit3
laws-of-motion
q16
easy
asked
Jul 5, 2013
by
meena.p
1
answer
In a hostel, 60% of the students read Hindi news paper, 40% read English news paper and 20% read both Hindi and English news papers. A student is selected at random. If she reads English news paper, find the probability that she reads Hindi news paper.
bookproblem
cbse
class12
ch13
sec2
q16
easy
sec-a
q16-3
math
asked
Jun 19, 2013
by
balaji.thirumalai
1
answer
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