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Recent questions tagged q35
Questions
Solve :$\log _7\log _5(\sqrt{x+5}+\sqrt{x})=0$
jeemain
math
class11
ch3
trigonometric-functions
q35
trigonometric-equations
difficult
asked
Nov 19, 2013
by
sreemathi.v
1
answer
If the vector $\overrightarrow{a} =2 \hat i+3 \hat j+6 \hat k$ and $\overrightarrow {b}$ are collinear and $|\overrightarrow {b}|=21,$ then $\overrightarrow {b}$ is equal to :
jeemain
eamcet
math
2005
q35
asked
Nov 12, 2013
by
meena.p
1
answer
Which one of the following statements related to protein synthesis are true ?
jeemain
eamcet
biology
2010
q35
asked
Nov 11, 2013
by
thanvigandhi_1
0
answers
The compound prepared by a substitution reaction of benzene is :
jeemain
eamcet
chemistry
2005
q35
asked
Nov 11, 2013
by
meena.p
1
answer
If $\overrightarrow a=\hat i+\hat j+\hat k,\:\:\overrightarrow a.\overrightarrow b=1$ and $\overrightarrow a\times\overrightarrow b=\hat j-\hat k,$ then $\overrightarrow b=?$
jeemain
math
class12
ch10
vector-algebra
medium
vector-product
q35
asked
Nov 10, 2013
by
rvidyagovindarajan_1
1
answer
Two parallel rails of a railway track insulated from each other and with the ground are connected to a millivoltmeter. The distance between the rails is one meter. A train is travelling with a velocity of 72 km/h along the track. The reading of the millivoltmeter (in mV) is : (Vertical component of the earth's magnetic induction is $2 \times 10^{-5} T)$
jeemain
eamcet
physics
2005
q35
asked
Nov 8, 2013
by
meena.p
1
answer
The position vector of a point lying on the line joining the points whose positions vectors are $ \hat i+\hat j-\hat k$ and $\hat i- \hat j +\hat k$ is :
jeemain
eamcet
math
2006
q35
asked
Nov 6, 2013
by
meena.p
1
answer
Hydrolysis of $NCl_3$, gives $NH_3$ and X. Which of the following is X?
jeemain
eamcet
chemistry
2006
q35
asked
Oct 30, 2013
by
meena.p
1
answer
A rectangular loop of length l and breadth b is placed at distance of x from infinitely long wire carrying current i such that the direction of current is parallel to breadth. If the loop moves away from the current wire in a direction perpendicular to it with a velocity v, the magnitude of the emf in the loop is : ($\mu_o$= permeability of free space)
jeemain
eamcet
physics
2006
q35
asked
Oct 29, 2013
by
meena.p
1
answer
Of the four plants (A,B,C and D) obswerved, 'A' was selected by mendel for his hybridization experiments, while in 'B' , shull found inbreeding depression and it is a day neutral plant. In 'C' Hugo de Vries discovered mutations. 'D' has bicollateral vascular bundles and straight embryos. Identify the characters of - A,B, C and D in correct order
jeemain
eamcet
biology
2011
q35
asked
Oct 27, 2013
by
thanvigandhi_1
1
answer
If the points whose position vectors are $2 \hat i+\hat j+\hat k, 6 \hat i-\hat j+2 \hat k$ and $14\hat i-5 \hat j+p \hat k$ are collinear, then the value of p is
jeemain
eamcet
math
2007
q35
asked
Oct 25, 2013
by
meena.p
1
answer
4.4g of $CO_2$ and $2.24$ litre of $H_2$ at STP are mixed in a container.The total number of molecules present in the container will be
jeemain
chemistry
physical-chemistry
class11
unit1
some-basic-concepts-in-chemistry
stoichiometry
q35
medium
asked
Oct 24, 2013
by
sreemathi.v
1
answer
Bhopal gas tragedy of 1984 was caused by
jeemain
eamcet
chemistry
2007
q35
asked
Oct 24, 2013
by
meena.p
1
answer
The natural frequency of an $I-C$ circuit is $1,25,000$ cycle/s. Then the capacitor C is replaced by another capacitor with a dielectric medium of dielectric constant by $25 \;kHz$. The value of K is
jeemain
eamcet
physics
2007
q35
asked
Oct 23, 2013
by
meena.p
1
answer
The position vectors of P and Q are respectively $\bar {a}$ and $\bar {b}$. If R is a point on $\overleftrightarrow{PQ}$ such that $\overrightarrow{PR}= 5 \overrightarrow{PQ},$ then the position vector of R is :
jeemain
eamcet
math
2008
q35
asked
Oct 17, 2013
by
meena.p
1
answer
The correct condition among the following with reference to sexual reproduction in Rhizopus stolonifer is
jeemain
eamcet
biology
2012
q35
asked
Oct 16, 2013
by
thanvigandhi_1
1
answer
If $\tan\theta=\large\frac{b}{a}$ then find the value of $a^2\cos 2\theta+b\sin 2\theta$
jeemain
math
class11
ch3
trigonometric-functions
q35
trignometric-identities
medium
asked
Oct 16, 2013
by
sreemathi.v
1
answer
Suppose $\overrightarrow {a}= \lambda \overrightarrow {i}- 7 \overrightarrow {j}+3 \overrightarrow {k}, \overrightarrow {b}= \lambda \overrightarrow {i}+\overrightarrow {j}+2 \lambda \overrightarrow {k}$. If the angle between $\overrightarrow {a}$ and $\overrightarrow {b}$ is greater than $90^{\circ},$ then $\lambda$ satisfies the inequality:
jeemain
eamcet
math
2009
q35
asked
Oct 9, 2013
by
meena.p
1
answer
A quadratic equation whose roots are $cosec^2\theta$ and $\sec^2\theta$ can be
jeemain
math
class11
ch3
trigonometric-functions
q35
trignometric-identities
easy
asked
Oct 8, 2013
by
sreemathi.v
1
answer
The microelement which is an integral part of the electron carrier which transfers electrons from cyt-b-f complex to PCI is a component of
jeemain
eamcet
biology
2013
q35
asked
Oct 4, 2013
by
thanvigandhi_1
1
answer
Power required to raise $300 liters$ of water per minute through a height of 6m using a pipe of diameter 2.4 cm is $(g=10 m/s^2)$
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q35
medium
asked
Oct 4, 2013
by
meena.p
1
answer
If the angle $\theta$ between the vectors $\overrightarrow {a}=2x^2 \overrightarrow {i}+ 4x \overrightarrow {j}+ \overrightarrow {k}$ and $\overrightarrow {b}=7 \overrightarrow{i}-2 \overrightarrow {j}+x \overrightarrow {k}$ is such that $90^{\circ} < \theta <180^{\circ}$ then $x$ lies in the interval ::
jeemain
eamcet
math
2010
q35
asked
Sep 26, 2013
by
meena.p
1
answer
$A=\begin{bmatrix} 1 & 0 & 1\\ 0 & 1 & 1 \\ 0 & 1 & 0\end{bmatrix} \;=>\;A^2-2A=$
jeemain
eamcet
math
2011
q35
asked
Sep 20, 2013
by
meena.p
1
answer
A unit vector co planar with $ \overrightarrow {i}+\overrightarrow {j}+ 3\overrightarrow {k}$ and $ \overrightarrow {i} +3 \overrightarrow {j}+ \overrightarrow {k}$ and perpendicular to $\overrightarrow {i}+ \overrightarrow {j}+ \overrightarrow {k}$ is
jeemain
eamcet
math
2013
q35
asked
Sep 16, 2013
by
meena.p
1
answer
Refer the below equation:
jeemain
eamcet
chemistry
1991
fitb
q35
asked
Sep 12, 2013
by
meena.p
0
answers
Three masses 1 kg 2 kg and 3 kg are placed at the vertices of an equilateral triangle of side 1m. Find the gravitational potential energy of the system $(G=6.67 \times 10^{-11} Nm^2 /kg^2)$
jeemain
physics
class11
unit6
gravitation
q35
medium
asked
Aug 20, 2013
by
meena.p
1
answer
A particle is given an initial speed u inside a smooth spherical shell of radius $R=1m$ that it is just able to complete the circle. Acceleration of the particle when its velocity is vertical is
jeemain
physics
class11
unit4
work-power-energy
q35
difficult
asked
Jul 19, 2013
by
meena.p
1
answer
A boy sitting on top berth in the compartment of a train which just going to stop in a railway station dops an apple aiming at open hand of his brother sitting vertically below his hands at a distance of 2m. The apple will fall
jeemain
physics
class11
unit3
laws-of-motion
q35
easy
asked
Jul 9, 2013
by
meena.p
1
answer
Energy density and pressure have
jeemain
physics
class11
ch2
units-and-measurement
q35
easy
international-system-of-units
asked
Jun 18, 2013
by
meena.p
1
answer
The function $f(x)=x^{2}-5x+4$ is increasing in
tnstate
class12
bookproblem
p232
objective
q35
asked
May 18, 2013
by
poojasapani_1
1
answer
If$[\overrightarrow{a}\times\overrightarrow{b},\overrightarrow{b}\times\overrightarrow{c},\overrightarrow{c}\times\overrightarrow{a}]=64$ then $[\overrightarrow{a},\overrightarrow{b},\overrightarrow{c}]$ is
tnstate
class12
bookproblem
p267
objective
q35
modelpaper
mar-2006
mar-2008
oct-2008
asked
May 10, 2013
by
poojasapani_1
1
answer
Two cards are drawn without replacement from a pack. Find the probability distribution of number of face cards.
cbse
class12
additionalproblem
kvquestionbank2012
ch13
q35
p43
math
asked
Feb 5, 2013
by
meena.p
0
answers
Evaluate:\[\int \frac{\sin x+\cos x}{\sqrt{1+\sin 2x}}dx\]
cbse
class12
additionalproblem
kvquestionbank2012
ch7
q35
p26
math
asked
Feb 2, 2013
by
meena.p
0
answers
Find the equation of all lines having slope -1 and that are tangents to the curve $ y=\Large\frac{1}{x-1}, \normalsize x\neq1$
cbse
class12
additionalproblem
kvquestionbank2012
ch6
q35
p18
math
asked
Jan 29, 2013
by
meena.p
0
answers
If $ p(\alpha)=\begin{bmatrix} \cos \alpha & i\sin \alpha \\ -\sin \alpha & \cos \alpha \end{bmatrix}\;show\;that\;p(\alpha) \times p(\beta)=p(\alpha+\beta)$
cbse
class12
additionalproblem
kvquestionbank2012
ch3
q35
p9
math
sec-b
asked
Jan 24, 2013
by
meena.p
0
answers
The degree of the differential equation $1+\bigg[\bigg(\large\frac{dy}{dx}\bigg)^2\bigg]^{\large\frac{3}{2}}=\frac{d^2y}{dx^2}$ is:\[(A)\;4\quad(B)\;\frac{3}{2}\quad(C)\;not\;defined\quad(D)\;2\]
cbse
class12
ch9
sec-a
q35
p195
objective
exemplar
easy
math
asked
Jan 18, 2013
by
sreemathi.v
1
answer
If $\overrightarrow{r}.\overrightarrow{a}=0,\overrightarrow{r}.\overrightarrow{b}=0$ and $\overrightarrow{r}.\overrightarrow{c}=0$ for some non-zero vector $\overrightarrow{r}$,then the value of $\overrightarrow{a}.(\overrightarrow{b}\times\overrightarrow{c})$ is___________.
cbse
class12
ch10
q35
p219
exemplar
medium
sec-a
math
asked
Jan 17, 2013
by
sreemathi.v
1
answer
Evaluate the following: $\displaystyle\int\frac{x^2dx}{x^4-x^2-12}$
cbse
class12
ch7
q35
p165
exemplar
sec-c
difficult
math
asked
Jan 14, 2013
by
sreemathi.v
1
answer
The sides of an equilateral triangle are increasing at the rate of 2cm/sec.The rate at which the area increases ,when side is 10cm is
cbse
class12
ch6
q35
p138
objective
exemplar
easy
sec-a
math
asked
Jan 11, 2013
by
sreemathi.v
1
answer
Find the probability distribution of the maximum of two scores obtained when a die is thrown twice .Determine also the mean of the distribution.
cbse
class12
ch13
q35
p275
short-answer
exemplar
sec-b
medium
math
asked
Jan 9, 2013
by
sreemathi.v
1
answer
In a LPP,the linear inequalities or restrictions on the variables are called _____________.
cbse
class12
ch12
q35
p257
fitb
exemplar
sec-a
easy
math
asked
Jan 8, 2013
by
sreemathi.v
1
answer
The locus represented by $xy+yz=0$ is
cbse
class12
ch11
sec-a
q35
p238
objective
exemplar
easy
math
asked
Jan 4, 2013
by
sreemathi.v
1
answer
Differentiate the following w.r.t x: $\sin^mx.\cos ^nx$.
cbse
class12
ch5
q35
p109
short-answer
exemplar
sec-a
medium
math
asked
Dec 31, 2012
by
sreemathi.v
1
answer
If $x,y,z$ are all different from zero and $\begin{vmatrix}1+x & 1 & 1\\1 & 1+y & 1\\1 & 1 & 1+z\end{vmatrix}$ = 0, then value of $x^{-1}+y^{-1}+z^{-1}$ is
cbse
class12
ch4
sec-a
q35
p82
objective
exemplar
medium
math
asked
Dec 27, 2012
by
sreemathi.v
1
answer
Verify that $A^2=I\;when\;A=\begin{bmatrix}0 & 1 & 1\\4 & 3 & 4\\3 & 3 & 4\end{bmatrix}.$
cbse
class12
ch3
q35
p57
short-answer
exemplar
sec-a
easy
math
asked
Dec 23, 2012
by
sreemathi.v
1
answer
A dietician has to develop a special diet using two foods P and Q. Each packet (containing 30g) of food P contains 12 units of calcium, 4 units of iron, 6 units of cholesterol and 6 units of vitamin A. Each packet of the same quantity of food Q contains 3 units of calcium, 20 units of iron, 4 units of cholesterol, and 3 units of vitamin A. The diet requires atleast 240 units of calcium, atleast 460 units of iron and atmost 300 units of cholesterol. How many packets of each food should be used to minimize the amount of vitamin A in the diet? What is the minimum amount of vitamin A?
cbse
class12
modelpaper
2012
sec-c
q35
math
asked
Dec 22, 2012
by
thanvigandhi_1
0
answers
If $\cos^{-1}\alpha+\cos^{-1}\beta+\cos^{-1}\gamma=3\pi$,then $\alpha(\beta+\gamma)+\beta(\gamma+\alpha)+\gamma(\alpha+\beta)$ equals\[(A)\;0\quad(B)\quad 1\quad(C)\quad 6\quad(D)\quad 12\]
cbse
class12
ch2
q35
p39
objective
exemplar
medium
sec-b
math
asked
Dec 21, 2012
by
sreemathi.v
1
answer
If the set A contains 5 elements and the set B contains 6 elements, then the number of one-one and onto mappings from A to B is
cbse
class12
ch1
q35
p14
objective
exemplar
sec-a
math
asked
Dec 19, 2012
by
sreemathi.v
1
answer
Integrate the function $\frac{(1+log\: x)^2}{x}$
cbse
class12
bookproblem
ch7
sec2
q35
p305
sec-a
easy
modelpaper
2012
q6
math
asked
Dec 5, 2012
by
sreemathi.v
1
answer
Prove the following\[\int\limits_0^1x\;e^x\;dx=1\]
cbse
class12
bookproblem
ch7
misc
q35
p353
sec-b
easy
math
asked
Dec 2, 2012
by
sreemathi.v
1
answer
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