Recent questions tagged q56

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

asked Dec 16, 2013 by meena.p

1 answer

The measurement of the electron position is associated with an uncertainty in momentum, which is equal to $ 1 \times 10^{-18} g\: cm\: s^{-1}$ . The uncertainty in electron velocity is, ( mass of an electron is $ 9 \times 10^{-28}g)$

asked Dec 16, 2013 by thanvigandhi_1

0 answers

Loreal pit in vipers act as which receptor ?

asked Dec 9, 2013 by thanvigandhi_1

0 answers

Spigelian lobe in rabbit is a lobe of the

asked Dec 2, 2013 by thanvigandhi_1

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Oxygen belongs to which category?

asked Nov 28, 2013 by sreemathi.v

1 answer

$M_2SO_4$ ($M^+$ is monovalent metal ion) has a $K_{sp}$ of $3.2 \times 10^{-5}$ at 298 K. The maximum concentration of $SO^{2-}_4$ ion that could be attained in a saturated solution of this solid at 289 K is

asked Nov 27, 2013 by mosymeow_1

1 answer

The fossil record of placoderms is found in this era :

asked Nov 26, 2013 by thanvigandhi_1

0 answers

If $\overrightarrow a\:\:and\:\:\overrightarrow b$ are two non zero non collinear vectors, then $[\overrightarrow a\:\overrightarrow b\:\hat i]\hat i+[\overrightarrow a\:\overrightarrow b\:\hat j]\hat j+[\overrightarrow a\:\overrightarrow b\:\hat k]\hat k=?$

asked Nov 20, 2013 by rvidyagovindarajan_1

1 answer

The circumradius of the $\Delta$le whose sides are $13,12\; and\; 5 \;is$?

asked Nov 18, 2013 by sreemathi.v

1 answer

Which one of the following arthropods is viviparous ?

asked Nov 13, 2013 by thanvigandhi_1

1 answer

The parabola with directrix $x+2y-1=0$ and focus (1,0) is :

asked Nov 12, 2013 by meena.p

1 answer

Equations of the latus rectum of the ellipse $9x^2+4y^2-18x -8y-23=0$ are :

asked Nov 6, 2013 by meena.p

2 answers

Three-lobed diphycercal tail is the feature of this fish :

asked Oct 28, 2013 by thanvigandhi_1

1 answer

In compound $C,H,N$ atoms are present in 9 : 1 : 35 by weight .Molecular weight of compound is 108.It molecular formula is

asked Oct 28, 2013 by sreemathi.v

1 answer

For the parabola $y^2+6y-2x+5=0$(I) The vertex is (-2,-3) (II) The directrix is y+3=0

asked Oct 25, 2013 by meena.p

1 answer

If $2x+3y+12=0$ and $x-y+ 4 \lambda=0$ are conjugate with respect to the parabola $y^2=8x$ then $\lambda=$

asked Oct 17, 2013 by meena.p

1 answer

The cells that have $CD_8$ Markers on the cell membrane are

asked Oct 17, 2013 by thanvigandhi_1

1 answer

If the circle $x^2+y^2=a^2$ intersects the hyperbola $xy=c^2$ in four points $(x_i,y_i),$ for $i=1,2,3$ and $4$, then $y_1+y_2+y_3+y_4=$

asked Oct 10, 2013 by meena.p

1 answer

The expression $\tan^2\alpha+\cot^2\alpha$ is

asked Oct 9, 2013 by sreemathi.v

1 answer

In the transverse section of Pheretima, identify the correct sequence of body wall layers from outer to inner side

asked Oct 5, 2013 by thanvigandhi_1

1 answer

The product of the perpendicular distances from any point on the hyperbola $\large\frac{x^2}{a^2}-\frac{y^2}{b^2}$$=1$ to its asymptotes is :

asked Sep 27, 2013 by meena.p

1 answer

Seven white balls and three black balls are randomly arranged in a row. The probability that no two black balls are placed adjacently is

asked Sep 23, 2013 by meena.p

0 answers

If the foci of the ellipse $\large\frac{x^2}{25}+\frac{y^2}{16}=1$ and the hyperbola $\large\frac{x^2}{4}-\frac{y^2}{b^2}=1$ coincide, then $b^2=$

asked Sep 16, 2013 by meena.p

1 answer

The Planet mercury is revolving in an elliptical orbit around the sun as shown. Kinetic energy will be greatest at

asked Aug 22, 2013 by meena.p

1 answer

An object of mass m is allowed to fall from rest along a rough inclined plane. The speed of the object at bottom of the plane is proportional to

asked Aug 5, 2013 by meena.p

1 answer

A man of mass 60 kg is pulling a mass M by an inextensible string passing over a frictionless (massless) pulley. The coefficient of friction between man and the ground is $\mu=\large\frac{1}{2}$. The maximum value of M that can be pulled by the man without slipping on ground is

asked Jul 11, 2013 by meena.p

1 answer

If $u=y\sin x,$ then $\large\frac{\partial^{2} u}{\partial x\partial y}$ is equal to

asked May 21, 2013 by poojasapani_1

1 answer

The modulus and amplitude of the complex number $[e^{3-i \pi/4}]^{3}$ is respectively

asked May 11, 2013 by poojasapani_1

1 answer

If $\;A=\small\frac{1}{\pi}$$\begin{bmatrix}sin^{-1}(\pi x) &tan^{-1}\big(\frac{\pi}{x}\big)\\ sin^{-1}\big(\frac{\pi}{x} \big)&cot^{-1}(\pi x)\end{bmatrix}\;$ and $\;B=\small\frac{1}{\pi} $$\begin{bmatrix}-cos^{-1}(\pi x) &tan^{-1}\big(\frac{x}{\pi}\big)\\ sin^{-1}\big(\frac{x}{\pi} \big)&-tan^{-1}(\pi x)\end{bmatrix}$ then $A-B$ is equal to

asked Mar 10, 2013 by sreemathi.v

1 answer

Evaluate:\[\int \frac {\cos x}{(1+\sin x)(2+\sin x)}dx\]

asked Feb 3, 2013 by meena.p

0 answers

A point on the hypotenuse of a right angled triangle is at distances a and b from the sides. Show that the length of the hypotenuse is at least $ \bigg(a^{2/3}+b^{2/3}\bigg)^{3/2}$

asked Jan 29, 2013 by meena.p

0 answers

$y=ae^{mx}+be^{-mx}$ satisfies which of the following differential equation?

asked Jan 18, 2013 by sreemathi.v

1 answer

If $\large \frac{x^3dx}{\sqrt{1-x^2}}=\normalsize a(1-x^2)^{\Large\frac{3}{2}}+b\sqrt{1-x^2}+C$,then

asked Jan 15, 2013 by sreemathi.v

1 answer

At $x=\Large\frac{5}{6}$$,f(x)=2\sin 3x+3\cos 3x$ is:

asked Jan 12, 2013 by sreemathi.v

1 answer

If $P(A)=\Large\frac{4}{5}$,and $P(A\cap B)=\Large\frac{7}{10}$,then P(B|A) is equal to

asked Jan 10, 2013 by sreemathi.v

1 answer

Find $\large \frac{dy}{dx}$ when x and y are connected by the relation $\tan^{-1}(x^2+y^2)=a $

asked Jan 2, 2013 by sreemathi.v

1 answer

True or False: If the determinant $\small\begin{vmatrix}x+a & p+u & l+ f\\y+b & q+v & m +g\\z+c & r+w & n + h\end{vmatrix}$ splits into exactly $k$ determinants of order $3$, each element of which contains online term,then the value of $k$ is $8$.

asked Dec 28, 2012 by sreemathi.v

1 answer

True or False: An integer m is said to be related to another integer n if m is a integral multiple of n.This relation in Z is reflexive,symmetric and transitive.

asked Dec 20, 2012 by sreemathi.v

1 answer

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