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Recent questions tagged class11

Find the angle of intersection of two circles?

asked Feb 12, 2014 by sreemathi.v

1 answer

Find the equation of circle passing through (1,1) and the point of intersection of the circles $x^2+y^2+10x-y=0$ and $2x^2+2y^2+2x-5y-23=0$

asked Feb 12, 2014 by sreemathi.v

1 answer

Find the length of common chord of the two circles $(x-p)^2+(y-q)^2=c^2$ and $(x-q)^2+(y-p)^2=c^2$.

asked Feb 12, 2014 by sreemathi.v

1 answer

Calculate the weight of $CH_4$ in a 9 litre cylinder at 16 atm and $27^{\large\circ}$ (R = 0.08 litre atm $K^{-1}$)

asked Feb 11, 2014 by sharmaaparna1

1 answer

Calculate the temperature at which 28g $N_2$ occupies a volume of 10 litres at 2.46 atm.

asked Feb 11, 2014 by sharmaaparna1

1 answer

Calculate the volume occupied by 7g $N_2$ at $27^{\large\circ}$ and 750mm of Hg.

asked Feb 11, 2014 by sharmaaparna1

1 answer

An iron cylinder contains helium at a pressure of 250 Kpa at 300K. The cylinder can withstand a pressure of $1\times10^6 Pa$ . The room in which cylinder is placed catches fire. Predict whether the cylinder will blow up before it melts or not . melting point of cylinder = 1800K

asked Feb 11, 2014 by sharmaaparna1

1 answer

Find the locus of a middle point of a system of parallel chords of a circle $x^2+y^2=a^2$?

asked Feb 11, 2014 by sreemathi.v

1 answer

Find the locus of the point of intersection of two perpendicular tangents to a given circle $x^2+y^2=a^2$?

asked Feb 11, 2014 by sreemathi.v

1 answer

Find the equation of tangents from the point A(3,2) to the circle $x^2+y^2+4x+6y+8=0$?

asked Feb 11, 2014 by sreemathi.v

1 answer

Find the equation of chord of contact of tangent drawn from a point $(x_1,y_1)$ to the circle $x^2+y^2=a^2$?

asked Feb 11, 2014 by sreemathi.v

1 answer

Find the area of triangle formed by the tangents (4,3) to the circle $x^2+y^2=9$ and the line segment joining their point of contact?

asked Feb 11, 2014 by sreemathi.v

1 answer

Find the length of tangents drawn from the point (4,5) to the circle $x^2+y^2+3x-2y-11=0$?

asked Feb 11, 2014 by sreemathi.v

1 answer

Find the equation of the circle(s) which touches the axes and whose centre lies on the line $2x-y=3$?

asked Feb 11, 2014 by sreemathi.v

1 answer

Find the equation of the circumcircle of the quadilateral formed by the four lines $x+y\pm1=0$ and $x-y\pm 1=0$?

asked Feb 11, 2014 by sreemathi.v

1 answer

Find the position of a point (2,3) with respect to circle $x^2+y^2+4x+4y+4=0$

asked Feb 11, 2014 by sreemathi.v

1 answer

Find the shortest and largest distance from the point (2,-7) to the circle $x^2+y^2-14x-10y-151=0$.

asked Feb 11, 2014 by sreemathi.v

1 answer

If two tangents are drawn from a point on the circle $x^2+y^2=36$ to the circle $x^2+y^2=18$ then find the angle between the tangents.

asked Feb 11, 2014 by sreemathi.v

1 answer

The density of $3M$ solution of $Na_2S_2O_3$ is $1.25$ $g mL^{−1}$. Calculate the mole fraction of $Na_2S_2O_3$.

asked Feb 11, 2014 by sharmaaparna1

1 answer

Find the parametric form of normal for the circle $x^2+y^2=a^2$

asked Feb 11, 2014 by sreemathi.v

1 answer

The density of 3M solution of $Na_2S_2O_3$ is 1.25 g $mL^{-1}$ Calculate the $\%$ by weight of $Na_2S_2O_3$.

asked Feb 11, 2014 by sharmaaparna1

1 answer

The maximum area of the triangle formed by the circle $x^2+y^2=a^2$ with two of its vertices are diametrically opposite points is?

asked Feb 11, 2014 by sreemathi.v

1 answer

$HNO_3$ used as a reagent has specific gravity of $1.42 mL^{-1}$ and contains $70\%$ by strength $HNO_3$. Calculate Volume of water required to make $1\;N$ solution from $2\; mL$ concentrated $HNO_3?\;(\text{Normality}_{HNO_3} = 15.78)$

asked Feb 11, 2014 by sharmaaparna1

1 answer

For the equation $(x-2)^2+(y-2)^2=4$ find the equation of tangent at $(2,4)$?

asked Feb 11, 2014 by sreemathi.v

1 answer

$HNO_3$ used as a reagent has specific gravity of $1.42 mL^{-1}$ and contains $70\%$ by strength $HNO_3$. Calculate Volume of acid that contains 63g pure acid.

asked Feb 11, 2014 by sharmaaparna1

1 answer

Find the equation of normal to the circle $(x-2)^2+(y-2)^2=4$ at $(2,4)$ ?

asked Feb 11, 2014 by sreemathi.v

1 answer

$HNO_3$ used as a reagent has specific gravity of $1.42 mL^{-1}$ and contains $70\%$ by strength $HNO_3$. Calculate Normality of acid

asked Feb 11, 2014 by sharmaaparna1

1 answer

Find the equation of normal for the circle, $x^2+y^2+2gx+2fy+c=0$ at $(x_1,y_1)$

asked Feb 11, 2014 by sreemathi.v

1 answer

Find the equation of tangent at the point $p(x_1,y_1)$ to a circle $x^2+y^2+2gx+2fy+c=0$?

asked Feb 11, 2014 by sreemathi.v

1 answer

Discuss the position of the points (2,3) and(1,3) with respect to circle $x^2+y^2-4x+2y-11=0$?

asked Feb 11, 2014 by sreemathi.v

1 answer

The abscissac of two points A and B are the roots of the equation $x^2+2ax-b^2=0$ and their ordinates are the roots of the equation $x^2+2px-q^2=0$.Find the equation and the radius of the circle with AB as diameter.

asked Feb 11, 2014 by sreemathi.v

1 answer

Find the length of the intercept on the straight line $4x-3y-10=0$ by the circle $x^2+y^2-2x+4y-20=0$

asked Feb 11, 2014 by sreemathi.v

1 answer

Equation of tangent of circle whose centre is (0,0) at a point (2,2) which lie on circle?

asked Feb 11, 2014 by sreemathi.v

1 answer

Find the equation of circle passing through (0,0) and (0,B)?

asked Feb 11, 2014 by sreemathi.v

1 answer

Find the area of equilateral triangle inscribed in the circle $x^2+y^2+2gx+2fy+c=0$?

asked Feb 11, 2014 by sreemathi.v

1 answer

Find the centre and radius of the circle $x^2+y^2-2x-4y=9$.

asked Feb 11, 2014 by sreemathi.v

1 answer

Write equation of circle whose diametrically opposite point are (1,2) & (-1,-2) is?

asked Feb 10, 2014 by sreemathi.v

1 answer

The radius of a circle with it's center at $(2,1)$ and whose one chord is the diameter of the circle $x^2+y^2-2x-6y+6=0$ is:

asked Feb 10, 2014 by sreemathi.v

1 answer

Find the length of sub tangent and sub-normal?(for hyperbola)

asked Feb 10, 2014 by sreemathi.v

1 answer

Find the equation of a diameter bisecting a system of parallel chords of slope m of the hyperbola $\large\frac{x^2}{a^2}-\frac{y^2}{b^2}$$=1$?

asked Feb 10, 2014 by sreemathi.v

1 answer

A submarine on the surface of the ocean, is on a course parallel to and 60 Km from the shore line as shown in the figure. There are two transmitters, X and Y located 200 Km from each other on the shore line. The submarine uses the signals to figure out that its 50 Km closer to station Y than to X. Find the distance between the submarine to each of the stations.

asked Feb 10, 2014 by sreemathi.v

1 answer

Find the equation and length of common tangent to hyperbola $\large\frac{x^2}{p^2}-\frac{y^2}{q^2}$$=1$ and $\large\frac{y^2}{p^2}-\frac{x^2}{q^2}$$=1$

asked Feb 10, 2014 by sreemathi.v

1 answer

Find the equation of an rectangular hyperbola whose centre is origin and its asymptotes coincide with the co-ordinate axes?

asked Feb 10, 2014 by sreemathi.v

1 answer

Find the equation of asymptotes for the hyperbola $\large\frac{x^2}{a^2}-\frac{y^2}{b^2}$$=1$?

asked Feb 10, 2014 by sreemathi.v

1 answer

Find the locus of intersection of two perpendicular tangent to the hyperbola $\large\frac{x^2}{a^2}-\frac{y^2}{b^2}$$=1$?

asked Feb 10, 2014 by sreemathi.v

1 answer

Find the equation of chord of contact for hyperbola $\large\frac{x^2}{a^2}-\frac{y^2}{b^2}$$=1$?

asked Feb 10, 2014 by sreemathi.v

1 answer

The hydrogen-like species $Li^{2+}$ is in a spherically symmetric state $S_1$ with one radial node. Upon absorbing light the ion undergoes transition to a state $S_2$ has one radial node and its energy is equal to the ground state energy of hydrogen atom. The orbital angular momentum quantum number of the state $S_2$ is

asked Feb 10, 2014 by sharmaaparna1

1 answer

The hydrogen-like species $Li^{2+}$ is in a spherically symmetric state $S_1$ with one radial node. Upon absorbing light the ion undergoes transition to a state $S_2$ has one radial node and its energy is equal to the ground state energy of hydrogen atom. Energy of the state $S_1$ in units of the hydrogen atom ground state energy is

asked Feb 10, 2014 by sharmaaparna1

1 answer

Find the equation of normal for the hyperbola $\large\frac{x^2}{a^2}-\frac{y^2}{b^2}$$=1$ in parametric form?

asked Feb 10, 2014 by sreemathi.v

1 answer

Find the equation of normal to the hyperbola $\large\frac{x^2}{a^2}-\frac{y^2}{b^2}$$=1$ at $(x_1,y_1)$ ?

asked Feb 10, 2014 by sreemathi.v

1 answer

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