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Recent questions tagged q37
Questions
The ratio of chromosomal number of pollen grain of Nicotiana tobacum; endosperm cell of Oryza Sativa and root cell of Allium Cepa is
jeemain
eamcet
biology
2011
q37
asked
Oct 27, 2013
by
thanvigandhi_1
1
answer
If $\overrightarrow {a}=\hat i+\hat j-\hat k$ and $\overrightarrow{b} =+ \lambda \hat i- 3\hat j+\hat k$ and the orthogonal projection of $\overrightarrow b$ on $\overrightarrow a $ is $\large\frac{4}{3}$$ (\hat i-\hat j-\hat k)$, then $\lambda$ is equal to
jeemain
eamcet
math
2007
q37
asked
Oct 25, 2013
by
meena.p
1
answer
16g $SO_x$ occupies 5.6 litres at STP. Assuming the nature of the gas to be ideal, the value of $x$ is
jeemain
chemistry
physical-chemistry
class11
unit1
some-basic-concepts-in-chemistry
stoichiometry
q37
medium
asked
Oct 25, 2013
by
sreemathi.v
1
answer
Calorific value of producer gas is low because of
jeemain
eamcet
chemistry
2007
q37
asked
Oct 24, 2013
by
meena.p
1
answer
The work function of the nickel is $5 \;eV$. When a light of wavelength 2000 A falls on it, it emits photo electrons in the circuit. Then the potential difference necessary to stop the fastest electrons emitted is (given $h= 6.67 \times 10^{-34}\;J-s$)
jeemain
eamcet
physics
2007
q37
asked
Oct 23, 2013
by
meena.p
1
answer
If the position vector of $A,B$ and $C$ are respectively $2 \bar i - \bar j +\bar k, \bar i - 3 \bar j - 5 \bar k$ and $ 3 \bar i - 4 \bar j - 4 \bar k$, then $\cos ^2 A=$
jeemain
eamcet
math
2008
q37
asked
Oct 17, 2013
by
meena.p
1
answer
When cells of a 15-celled filament of spirogyra affinis participate in indirect lateral conjugation, the maximum possible number of zygospores produced is
jeemain
eamcet
biology
2012
q37
asked
Oct 16, 2013
by
thanvigandhi_1
1
answer
Evaluate :$\large\frac{1+\sin\theta-\cos\theta}{1+\sin\theta+\cos\theta}$
jeemain
math
class11
ch3
trigonometric-functions
q37
trignometric-identities
medium
asked
Oct 16, 2013
by
sreemathi.v
1
answer
If $A$ and $B$ are events of a random experiment such that $P(A \cup B)=\large\frac{4}{5},$$ P(\bar {A} \cup \bar {B})=\large\frac{7}{10}$ and $P(B)=\large\frac{2}{5},$ then $P(A)=$
jeemain
eamcet
math
2009
q37
asked
Oct 9, 2013
by
meena.p
1
answer
If $\sin B=\large\frac{1}{5}$$\sin(2A+B)$ then $\large\frac{\tan(A+B)}{\tan A}$ is equal to
jeemain
math
class11
ch3
trigonometric-functions
q37
trignometric-identities
easy
asked
Oct 8, 2013
by
sreemathi.v
1
answer
If the ratio of lengths , radii and Young's modulli of two wires in the figure shown are 2,4, and 1 respectively. Then the corresponding ratio of increase in their length will be
jeemain
physics
class11
unit7
properties-of-solids-and-fluids
q37
medium
asked
Oct 7, 2013
by
meena.p
1
answer
What is the ratio of mitotic divisions that take place in the microspore of cycas before and after liberation from the microsporangium during the development of the male gametophyte?
jeemain
eamcet
biology
2013
q37
asked
Oct 4, 2013
by
thanvigandhi_1
1
answer
An urn A contains 3 white and 5 black balls. Another urn B contains 6 white and 8 black balls. A ball is picked from A at random and then transferred to B. Then a ball is picked at random from B. The probability that it is a white ball is :
jeemain
eamcet
math
2010
q37
asked
Sep 26, 2013
by
meena.p
1
answer
Let $z=a-\large\frac{i}{2};$$ \alpha \; \in IR.$ Then $|i+z|^2-|i-z|^2=$
jeemain
eamcet
math
2011
q37
asked
Sep 20, 2013
by
meena.p
1
answer
Two numbers are chosen at random from $\{1,2,3,4,5,6,7,8\}$ at a time. The probability that smaller of the two numbers is less than 4 is:
jeemain
eamcet
math
2013
q37
asked
Sep 16, 2013
by
meena.p
1
answer
Besides $SiO_2$ and $Al_2O_3$ the other major ingradient in portland cement is ................. .
jeemain
eamcet
chemistry
1991
fitb
q37
asked
Sep 12, 2013
by
meena.p
0
answers
A ring has a total mass M but not uniformly distributed over its circumference . The radius of ring is R. A Point mass m is placed at the center of the ring. Work done in taking away this point mass from center to infinity is
jeemain
physics
class11
unit6
gravitation
q37
medium
asked
Aug 21, 2013
by
meena.p
1
answer
Power supplied to a particle of mass 2 kg varies with time is $P=\large\frac{3t^2}{2}$ watt, velocity of particle at $t=0$ is $v=0.$ The velocity of particle at $t=2s$ will be
jeemain
physics
class11
unit4
work-power-energy
q37
medium
asked
Jul 19, 2013
by
meena.p
1
answer
In the arrangement shown by what acceleration the boy must go up so that 100 kg block remains stationary on the wedge. The wedge is fixed and friction is absent, every where $(g=10 m/s^2)$
jeemain
physics
class11
unit3
laws-of-motion
q37
easy
asked
Jul 9, 2013
by
meena.p
1
answer
Dimensional analysis of equation (velocity)$^x$=(pressure difference)$^{\Large\frac{3}{2}}$(density)$^{\Large\frac{-3}{2}}$ give values of $x$ to be
jeemain
physics
class11
ch2
units-and-measurement
q37
easy
dimensional-formulae-and-analysis
asked
Jun 18, 2013
by
meena.p
1
answer
The function $y=\tan x-x $ is
tnstate
class12
bookproblem
p233
objective
q37
asked
May 18, 2013
by
poojasapani_1
1
answer
The value of $[\overrightarrow{i}+\overrightarrow{j},\overrightarrow{j}+\overrightarrow{k},\overrightarrow{k}+\overrightarrow{i}] $ is equal to
tnstate
class12
bookproblem
p267
objective
q37
modelpaper
mar-2009
asked
May 10, 2013
by
poojasapani_1
1
answer
Find inverse,by elementary row operations(if possible),of the following matrices$(ii)\quad\begin{bmatrix}1 &- 3\\-2 & 6\end{bmatrix}$
cbse
class12
ch3
q37
q37-2
p57
short-answer
exemplar
sec-a
easy
math
asked
Mar 7, 2013
by
sreemathi.v
1
answer
Find the probability distribution of the sum of the numbers obtained when two dice are thrown once.
cbse
class12
additionalproblem
kvquestionbank2012
ch13
q37
p43
math
asked
Feb 5, 2013
by
meena.p
0
answers
Evaluate:\[\int \frac{1+\sin 2x}{1+\sin^2x}dx\]
cbse
class12
additionalproblem
kvquestionbank2012
ch7
q37
p26
math
asked
Feb 2, 2013
by
meena.p
0
answers
Find the points on the curve $ y=x^3-3x^2+2x$ at which the tangent to the curve is parallel to the line $ y-2x+3=0$
cbse
class12
additionalproblem
kvquestionbank2012
ch6
q37
p18
math
asked
Jan 29, 2013
by
meena.p
0
answers
If $ y=\Large\frac{1}{\sqrt{b^2-a^2}} \normalsize log \bigg[\Large\frac{\sqrt{b+a}+\sqrt{b-a}\tan \frac{x}{2}} {\sqrt{b+a}-\sqrt{b-a}\tan \frac{x}{2}}\bigg]$ prove that $ \Large\frac {dy}{dx}=\frac{\sec^2\frac{x}{2}}{(b+a)-(b-a) \tan^2\frac{x}{2}}$
cbse
class12
additionalproblem
kvquestionbank2012
ch5
q37
p14
difficult
math
sec-b
asked
Jan 28, 2013
by
meena.p
1
answer
If $ A=\begin{bmatrix} 3 & -4 \\ -1 & 2 \end{bmatrix}$ find Matrix B such that AB= 1
cbse
class12
additionalproblem
kvquestionbank2012
ch3
q37
p9
math
sec-a
asked
Jan 24, 2013
by
meena.p
0
answers
If $y=e^{-x}(A\cos x+B\sin x)$, then $y$ is a solution of
cbse
class12
ch9
differential-equations
sec-a
q37
p195
objective
exemplar
difficult
math
asked
Jan 18, 2013
by
sreemathi.v
1
answer
The values of k for which $\mid k\overrightarrow{a}\mid\le\mid\overrightarrow{a}\mid$ and $k\overrightarrow{a}+\frac{1}{2}\overrightarrow{a}$ is parallel to $\overrightarrow{a}$ holds true are_________.
cbse
class12
ch10
q37
p219
exemplar
medium
math
sec-a
asked
Jan 17, 2013
by
sreemathi.v
1
answer
Evaluate the following:$\int\limits_0^{\Large\pi} \large \frac{x}{1+\sin x}$
cbse
class12
ch7
q37
p165
exemplar
sec-b
medium
math
asked
Jan 14, 2013
by
sreemathi.v
1
answer
The curve $y=x^\frac{1}{5}$ has at
cbse
class12
ch6
q37
p138
objective
exemplar
easy
sec-a
math
asked
Jan 11, 2013
by
sreemathi.v
1
answer
Find the variance of the distribution.
cbse
class12
ch13
q37
p276
short-answer
exemplar
sec-a
easy
math
asked
Jan 9, 2013
by
sreemathi.v
1
answer
If the feasible region for a LPP is __________,then the optimal value of the objective function $Z=ax+by$ may or may not exist.
cbse
class12
ch12
q37
p257
fitb
exemplar
sec-a
easy
math
asked
Jan 8, 2013
by
sreemathi.v
1
answer
A plane passes through the points $(2,0,0) (0,3,0)$ and $(0,0,4)$.The equation of plane is__________.
cbse
class12
ch11
q37
p239
fitb
exemplar
easy
sec-a
math
asked
Jan 4, 2013
by
sreemathi.v
1
answer
Differentiate the following w.r.t $x$ : $\sin^{-1} \big[\large\frac{1}{\sqrt 2}$$\sin x+\large\frac{1}{\sqrt 2}$$\cos x\big],\large\frac{-\pi}{4}<$$x<\large\frac{\pi}{4}$.
cbse
class12
ch5
q37
p110
short-answer
exemplar
sec-a
easy
math
asked
Dec 31, 2012
by
sreemathi.v
1
answer
There are two values of $a$ which makes the determinant $\Delta=\begin{vmatrix}1 & -2 & 5\\2 & a & 1\\0 & 4 & 2a\end{vmatrix}= 86,$ then sum of these number is
cbse
class12
ch4
sec-a
q37
p83
objective
exemplar
medium
math
asked
Dec 27, 2012
by
sreemathi.v
1
answer
Find inverse,by elementary row operations(if possible),of the following matrices$\quad\begin{bmatrix}1 & 3\\-5 & 7\end{bmatrix}$
cbse
class12
ch3
q37
q37-1
p57
short-answer
exemplar
sec-b
medium
math
asked
Dec 23, 2012
by
sreemathi.v
1
answer
Find the distance between the point P (6, 5, 9) and the plane determined by points A (3, –1, 2), B (5, 2, 4) and C (–1, –1, 6).
cbse
class12
modelpaper
2012
sec-c
q37
math
asked
Dec 21, 2012
by
thanvigandhi_1
0
answers
If $\cos^{-1}x\;>\;\sin^{-1}x,$ then \begin{array}{1 1}(A)\quad\frac{1}{\sqrt 2}<x\leq 1& (B)\quad 0\leq x<\frac{1}{\sqrt 2}\\(C)\quad -1\leq x<\frac{1}{\sqrt 2} & (D)\quad x>0\end{array}
cbse
class12
ch2
q37
p39
objective
exemplar
medium
sec-a
math
asked
Dec 21, 2012
by
sreemathi.v
1
answer
Let $f\;:\;R\rightarrow R$ be defined by $f(x)\;=\;\frac{1}{x}\quad x\;\in\; R.$Then f is
cbse
class12
ch1
q37
p15
objective
exemplar
sec-a
math
asked
Dec 19, 2012
by
sreemathi.v
1
answer
Integrate the function $\frac{x^3\sin\bigg(\tan^{-1}x^4\bigg)}{1+x^8}$
cbse
class12
bookproblem
ch7
sec2
q37
p305
sec-b
easy
math
asked
Dec 5, 2012
by
sreemathi.v
1
answer
Prove the following\[\int\limits_0^\frac{\pi}{2}\sin^3x\;dx=\frac{2}{3}\]
cbse
class12
bookproblem
ch7
misc
q37
p353
sec-b
easy
math
asked
Dec 2, 2012
by
sreemathi.v
1
answer
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