Recent questions tagged q61

The gyro- magnetic ratio of an electron in an H- atom , according to Bohr model is

asked Jul 29, 2015 by meena.p

1 answer

Where on the earth's surface is the value of angle of dip maximum ?

asked Jul 20, 2015 by meena.p

1 answer

What is the Potential gradient? How is it measured? Explain

asked Jul 1, 2015 by meena.p

1 answer

Consider a uniform electric field $E=3 \times 10 \times 10^3 \hat i N/C$. What is the flux of this foeld through a square of $10 \;cm$ a side whose plane is parallel to the y-z plane ?

asked Apr 27, 2015 by meena.p

1 answer

Borax has the molecular formula

asked Jul 27, 2014 by thanvigandhi_1

1 answer

If $K=\sin\large\frac{5\pi}{8}$$\sin \large\frac{5\pi}{18}$$\sin \large\frac{7\pi}{18}$,then the numerical value of $K$ is _____

asked Apr 22, 2014 by sreemathi.v

1 answer

Which one of the following properties is not shown by NO ?

asked Apr 7, 2014 by sreemathi.v

1 answer

The correct statement in respect of protein haemoglobin that is

asked Mar 29, 2014 by thanvigandhi_1

1 answer

Identify correct statement regarding spontaneous process

asked Mar 18, 2014 by thanvigandhi_1

1 answer

Among the following statements the incorrect one is

asked Mar 18, 2014 by meena.p

1 answer

Structure of some common polymers are given which of the following is not correctly matched?

asked Mar 12, 2014 by thanvigandhi_1

1 answer

Which of the following statement is incorrect?

asked Mar 6, 2014 by sreemathi.v

1 answer

Select the final product of the following sequence of reaction

asked Mar 4, 2014 by sreemathi.v

1 answer

A $60W$ monochromatic point source radiating equally in all directions in vacuum is being monitored at a distance of $2m$. Determine the amplitude if the electric field.

asked Mar 1, 2014 by thanvigandhi_1

1 answer

Only two isometric monochloro derivatives are possible for : (i) n-butane (ii) 2,4 -dimethylpentane (iii) benzene (iv) 2- methylpropane

asked Feb 25, 2014 by meena.p

1 answer

In the following reaction the major product formed is a

asked Feb 24, 2014 by sreemathi.v

1 answer

By how much is oxidizing power of $MnO_4^-/Mn^{+2}$ couple decreases if the $H^+$ concentration is decreased from 1M to $10^{-4}$M at $25^{\large\circ}C$ .Assume other species have no change in concentration.

asked Feb 17, 2014 by sreemathi.v

1 answer

Find the curve $y= f(x) $ through the origin for which $y''=y'$ and tangent at origin is $y=x$

asked Feb 6, 2014 by meena.p

1 answer

Find the locus of the points of intersection of the mutually perpendicular tangents to a parabola?

asked Feb 6, 2014 by sreemathi.v

1 answer

Which one of the following complexes can exhibit geometrical isomerism?

asked Feb 3, 2014 by sreemathi.v

1 answer

Which of the following is the weakest reducing agent

asked Jan 30, 2014 by sreemathi.v

1 answer

The following logic symbol represents

asked Jan 28, 2014 by meena.p

1 answer

The elements that reacts with cold water

asked Jan 28, 2014 by sreemathi.v

1 answer

Mean of 100 items is 49. It was discovered that 3 items 60, 70, 80 were wrongly read as 38,22,50 respectively. The correct mean is

asked Jan 25, 2014 by thanvigandhi_1

1 answer

$H_2O_2$ oxidises $H_2S$ to

asked Jan 23, 2014 by sreemathi.v

1 answer

Chief source of soil and water pollution is

asked Jan 21, 2014 by sreemathi.v

1 answer

Of the following outer electronic configurations of atoms,the highest oxidation state is achieved by which one of them

asked Jan 13, 2014 by sreemathi.v

1 answer

The equation of the plane that contains the line $\overrightarrow r=2\hat i+\lambda(\hat j-\hat k)$ and $\perp$ to the plane $\overrightarrow r.(\hat i+\hat k)=3$ is ?

asked Jan 4, 2014 by rvidyagovindarajan_1

1 answer

Given that $a\;\xi\;b$ are not equal , find the value of n so that $\frac{a^{n+1}+b^{n+1}}{a^n+b^n}$ is the GM of $a\;\xi\;b$

asked Jan 3, 2014 by yamini.v

1 answer

$\lim\limits_{x\to \infty}\large\frac{(2x-3)(3x-4)}{(4x-5)(5x-6)}$=

asked Dec 24, 2013 by sreemathi.v

1 answer

$\int \limits_{-\pi}^{\pi} (\cos px - \sin q x)^2 dx$ where $p \;\&\; q$ are whole number. Find its value.

asked Dec 17, 2013 by meena.p

1 answer

Which of the following statements is not correct ?

asked Dec 16, 2013 by thanvigandhi_1

0 answers

An example for holandric inheritance is :

asked Dec 9, 2013 by thanvigandhi_1

0 answers

Gestation period in human beings is

asked Dec 2, 2013 by thanvigandhi_1

0 answers

If $\overrightarrow u=\hat i+\hat j,\:\overrightarrow v=\hat i-\hat j\:\:and\:\:\overrightarrow w=\hat i+2\hat j+3\hat k$. and if $\hat n$ is a unit vector such that $\overrightarrow u.\hat n=\overrightarrow v.\hat n=0$, then $|\overrightarrow w.\hat n|=?$

asked Nov 28, 2013 by rvidyagovindarajan_1

1 answer

$5H_2O+NaB_4O_7+2HCl\rightarrow 2NaCl+x$. In this equation the $x$ is

asked Nov 28, 2013 by sreemathi.v

1 answer

To 10 mL of aqueous solution some strong acid having $pH$ = 2 is mixed with $pH$ = 4.0. The $pH$ of resulting solution is

asked Nov 27, 2013 by mosymeow_1

1 answer

Epinephrine affects :

asked Nov 26, 2013 by thanvigandhi_1

0 answers

Which of the following exhibit discontinuous distribution ?

asked Nov 13, 2013 by thanvigandhi_1

2 answers

If $f: R \to R $ is defined by $f(x)= \left\{ \begin{array}{1 1} \large\frac{x-2}{x^2-3x+2} & \quad if & \quad x\in R -[1,2] \\ 2 & \quad if & \quad x=2 \\ 1 & \quad if & \quad x=2 \end{array} \right. $ then $\lim \limits_{x \to 2} \large\frac{f(x)-f(2)}{x-2}=$

asked Nov 13, 2013 by meena.p

1 answer

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