Recent questions tagged q48

Nerve toxins are

asked Jan 21, 2014 by sreemathi.v

1 answer

A fair die is tossed eight times. The probability that a third six is observed on the eight throw is

asked Jan 16, 2014 by thanvigandhi_1

1 answer

The electronic configuration $1s^2,2s^2p^6,3s^13p^1$ correctly describes :

asked Jan 13, 2014 by sreemathi.v

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The mole fraction of NaCl in a solution containing 1 mole of NaCl in 1000g of water is

asked Jan 9, 2014 by sreemathi.v

1 answer

Find the sum of n terms of the series 2.4 + 5.6 + 8.8 + 11.10 +---------

asked Jan 3, 2014 by yamini.v

1 answer

If the plane $\large\frac{x}{2}+\frac{y}{3}+\frac{z}{4}=1$ cuts the coordinate axis in $A,B,C$ respectively, then the area of the $\Delta\:ABC$ is ?

asked Jan 2, 2014 by rvidyagovindarajan_1

1 answer

The function $f(x)=\left\{\begin{array}{1 1}1&x\leq -1\\|x|&-1< x < 1\\0&x\geq 1\end{array}\right.$

asked Dec 24, 2013 by sreemathi.v

1 answer

If the lattice parameter for a crystalline structure is 3.6 A, then the atomic radius in fcc crystal is :

asked Dec 16, 2013 by thanvigandhi_1

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Integrate: $\int \limits_0^{2 \pi} \sqrt {1-\sin \large\frac{x}{2} } dx$

asked Dec 16, 2013 by meena.p

1 answer

$AgNO_3(aq)\;\overset{\overset{electrolysis}{\Large\rightarrow}}{in\;presence\;of\;Ag\;electrode}$ then wrong statement is

asked Dec 12, 2013 by sreemathi.v

1 answer

When are the glogi bodies of a cell made non - functional ?

asked Dec 9, 2013 by thanvigandhi_1

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A cell organelle enveloped by a single unit membrane is

asked Dec 2, 2013 by thanvigandhi_1

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Silica is soluble in

asked Nov 28, 2013 by sreemathi.v

1 answer

$\rho H$ of water is 7.0 at 298 K. If water is heated to 350 K, which of the following should be true?

asked Nov 27, 2013 by mosymeow_1

1 answer

Periblem is a part of

asked Nov 26, 2013 by thanvigandhi_1

0 answers

The enzyme code of enzyme 2.7.1.1 refers to the following main group

asked Nov 23, 2013 by thanvigandhi_1

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If $A$ is a square matrix such that $A^2=I$ then $A^{-1}$ is equal to

asked Nov 21, 2013 by sreemathi.v

1 answer

If $|\overrightarrow a|=5, \:|\overrightarrow b|=3\:|\overrightarrow c|=4$ and $\overrightarrow a$ is $\perp$ to $\overrightarrow b\:\:and\:\:\overrightarrow c$ then $[\overrightarrow a\:\overrightarrow b\:\overrightarrow c]=?$

asked Nov 18, 2013 by rvidyagovindarajan_1

1 answer

The fusion of pronuclei of dissimilar gametes is called :

asked Nov 13, 2013 by thanvigandhi_1

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The equation of the straight line perpendicular to $5x-2y=7$ and passing through the point of intersection of the lines $2x+3y=1$ and $3x+4y=6$ is :

asked Nov 12, 2013 by meena.p

1 answer

The line represented by the equation $x^2-y^2-x+3y-2=0$ are :

asked Nov 6, 2013 by meena.p

1 answer

In rabbit the opening of coronary sinus into the left precaval vein is found by a fold called :

asked Oct 27, 2013 by thanvigandhi_1

1 answer

In the triangle with vertices at $A(6,3),B(-6,3)$ and $C(-6,-3)$ the median through A meets BC at P, the line AC meets the x-axis at Q,while R and S respectively denote the orthocenter and centroid of the triangle. Then the correct matching of the coordinates of points in List -I to List - II is

asked Oct 25, 2013 by meena.p

1 answer

Number of ions present in 2.0 litre of a solution of $0.8MK_4Fe(CN)_6$ is

asked Oct 25, 2013 by sreemathi.v

1 answer

The value of k such that the lines $2x-3y+k=0,3x-4y-13=0$ and $8x-11y-33=0$ are concurrent , is

asked Oct 17, 2013 by meena.p

1 answer

The hexacanth of Taenia reaches the heart of the pig through this vein

asked Oct 17, 2013 by thanvigandhi_1

1 answer

$\tan 5^{\large\circ}$ is a

asked Oct 17, 2013 by sreemathi.v

1 answer

The pair of straight line $x^2-3xy+2y^2=0$ and $x^2-3xy+2y^2=0$ and $x^2-3xy+2y^2+x-2=0$ form a:

asked Oct 10, 2013 by meena.p

1 answer

If $\tan\alpha=\large\frac{x}{x+1}$ and $\tan \beta=\large\frac{1}{2x+1}$ then $\alpha+\beta$ is

asked Oct 9, 2013 by sreemathi.v

1 answer

A ball of density $0.5 \times 10^3$ is dropped from a height of $10\; m$ and then enters water . Upto what depth will the ball go inside the water before it starts raising up.

asked Oct 8, 2013 by meena.p

1 answer

Which of the following character is not related to Indian chain viper?

asked Oct 5, 2013 by thanvigandhi_1

1 answer

If $3x^2-11xy+10y^2-7x+13y +k=0$ denotes a pair of straight lines, then the point of intersection of the lines is :

asked Sep 27, 2013 by meena.p

1 answer

The angle of elevation of a stationary cloud from a point 2500 m above a lake is $15^{\circ}$ and from the same point the angle of depressed its reflection in the lake is $45^{\circ}$. The height (in meters) of the cloud above the lake , given that $\cot 15^{\circ}=2+\sqrt {3}$, is

asked Sep 23, 2013 by meena.p

0 answers

If the equation $ax^2+2hxy+by^2+2gx+2fy+c=0$ represents a pair of straight lines, then the square of the distance of their point of intersection from the origin is

asked Sep 16, 2013 by meena.p

1 answer

A few drops of an organic compound (liquid) are added to schiff's reagent. A pink colour is produced. The organic compound is ................. .

asked Sep 12, 2013 by meena.p

1 answer

A satellite is seen after each 8 hours over equator at a place on earth when its sence of rotation is opposite to the earth. The time interval after which it can be seen at the same place when sense of rotation of earth and satellite is same , will be

asked Aug 22, 2013 by meena.p

1 answer

An engine develops 10 KW of power How much time will it take to lift mass of 200 kg to a height of 40 m

asked Jul 22, 2013 by meena.p

1 answer

A car is going at a speed of 6m/s when it encouters a 15 m slope of angle $30 ^{\circ}$. The frictional coefficient between road and tyre is 0.5. The driver applies the brakes. The minimum speed of car with which he can reach the bottom is $(g=10 m/s^2)$

asked Jul 10, 2013 by meena.p

1 answer

A particle is dropped from point A at a certain height from ground. It falls freely and passes through three points B,C and D with BC=CD.Time taken for particle to move from B to C is 2 seconds and from C to D is 1 second. Time taken to move from A to B is

asked Jun 26, 2013 by meena.p

1 answer

Resistance of metal is given by $R=\large\frac{V}{I}$. $V$ is potential difference, $I$ is current. In a circuit $V=(8 \pm 0.5)v$ and current is $I=(2 \pm 0.2)A$. what is value of resistance with percentage error?

asked Jun 19, 2013 by meena.p

1 answer

The curve $y^{2}(x-2)=x^{2}(1+x)$ has

asked May 21, 2013 by poojasapani_1

1 answer

If $\overrightarrow{a}=\overrightarrow{i}-\overrightarrow{2j}+\overrightarrow{3k}$ and $\overrightarrow{b}=\overrightarrow{3i}+\overrightarrow{j}+\overrightarrow{2k}$ then a unit vector perpendicular to $\overrightarrow{a}$ and $\overrightarrow{b}$ is

asked May 11, 2013 by poojasapani_1

1 answer

A die is thrown again and again untill three sixes are obtained. Find the probability of obtaining third six in sixth throw of dice.

asked Feb 5, 2013 by meena.p

0 answers

Evaluate:\[\int \frac {1}{4+5 \cos x}dx\]

asked Feb 3, 2013 by meena.p

0 answers

Show that the height of the right circular cylinder of maximum volume that can be inscribed in a given right circular cone of height $h\; is\; h/3$

asked Jan 29, 2013 by meena.p

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If f(x) and g(x) are functions derivable in [a,b] such that f(a) = 4, f(b) = 10, g(a) =1, g(b) =3.Show that for a < c < b, we have $ f'(c)=3g'(c).$

asked Jan 28, 2013 by meena.p

1 answer

Let $\begin{vmatrix} 3 & y \\ x & 1 \end{vmatrix} =\begin{vmatrix} 3 & 2 \\ 4 & 1 \end{vmatrix} $ find the possible values of x and y, find the values if x = y.

asked Jan 24, 2013 by meena.p

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$\tan^{-1}x+\tan^{-1}y=c$ is the general solution of the differential equation:

asked Jan 18, 2013 by sreemathi.v

1 answer

$\Large \int\frac{\cos 2x-\cos 2\theta}{\cos x-\cos\theta}\normalsize dx$ is equal to\begin{array}{1 1}(A)\;2(\sin x+x\cos\theta)+C & (B)\;2(\sin x-x\cos\theta)+C\\(C)\;2(\sin x+2x\cos\theta)+C & (D)\;2(\sin x-2x\cos\theta)+C\end{array}

asked Jan 15, 2013 by sreemathi.v

1 answer

$y=x(x-3)^2$ decreases for the values of x given by:

asked Jan 11, 2013 by sreemathi.v

1 answer

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