Recent questions tagged q51

Concentration of the $Ag^{+}$ ions in a saturated solution of $Ag_2C_2O_4$ is $2.2x10^{-4}\; mol L^{-1}$ Solubility product of $Ag_2C_2O_4$, is:

asked Nov 6, 2017 by meena.p

0 answers

A circular coil of 20 turns and radius $10\;cm$ is placed in a uniform magnetic field of $0.10\;T$ normal to the plane of the coil. If the current in the coil is $5.0 \;A$ What is the average force on each electron in the due to the magnetic field ?

asked Jul 29, 2015 by meena.p

1 answer

A sample of paramagnetic salt contains $2.0 \times 10^{24} $ atomic dipoles each of dipole moment $1.5 \times 10^{-23}\; J/T$. the sample is placed under a homogeneous magnetic field of $0.64 \;T$ and colled to a temperature of $4.2 \;K$ . The degree of magnetic saturation achieved is equal to $15\%$ What is the total dipole moment of the sample for a magnetic field of $0.98 \;T$ and a temperature of $2.8 \;k$? (assume curies's law)

asked Jul 15, 2015 by meena.p

1 answer

The storage battery of a car has an emt of $12\;V$. If the interval resistance of a battery is $0.4 \Omega$, What is the maximum current that can be drawn from the battery ?

asked Jun 30, 2015 by meena.p

1 answer

A uniformly charged conducting sphere of diameter $2.4 \;m$ has a surface charge density of $80.0\;\mu C/m^2$ (i) Find the charge on the sphere (ii) what is the total electric flux leaving the surface of the sphere?

asked Apr 24, 2015 by meena.p

1 answer

A uniformly charged conducting sphere of diameter $2.4\;m$ has a surface charge density of $80.0\;\mu c/m^2$ (i) Find the charge on the sphere (ii) What is the total electric flux leaving the surface of the sphere ?

asked Apr 24, 2015 by meena.p

1 answer

If the focus of a parabola is $(0,-3)$ and its directrix is $y=3$,then its equation is

asked Oct 16, 2014 by sreemathi.v

1 answer

Which of the following alloys of copper contains nickel ?

asked Jul 31, 2014 by thanvigandhi_1

1 answer

State whether the following statement is true or false and justify : The straight line $5x + 4y = 0$ passes through the point of intersection of the straight lines $x + 2y – 10 = 0$ and $ 2x + y + 5 = 0$

asked Jul 8, 2014 by thanvigandhi_1

1 answer

True-or-False:There are $12$ points in a plane of which $5$ points are collinear,then the number of lines obtained by joining these points in pair is $12C_2-5C_2$

asked May 16, 2014 by sreemathi.v

1 answer

If $\alpha+\beta=\large\frac{\pi}{4}$,then the value of $(1+\tan \alpha)-(1+\tan \beta)$ is

asked Apr 21, 2014 by sreemathi.v

1 answer

Let $a, b, c\; and \;d$ be non-zero numbers. If the point of intersection of the lines $4ax + 2ay + c = 0$ and $5bx+2by+d=0$ lies in the fourth quadrant and is equidistant from the two axes then

asked Apr 7, 2014 by sreemathi.v

1 answer

Which name is associated with the chemical substances produced in ductless endocrine glands?

asked Mar 28, 2014 by thanvigandhi_1

1 answer

When a metal is to be extracted from its ore and the gangue associated with the silica, then

asked Mar 17, 2014 by meena.p

2 answers

1 mole of ideal gas is allowed to expand isothermally from the initial volume of 1L to 10L, the value of $ \Delta U$ for the process is $(R = 2\: cal/Kmol)$

asked Mar 17, 2014 by thanvigandhi_1

1 answer

Acronitrile prefers to polymerise under

asked Mar 11, 2014 by thanvigandhi_1

1 answer

Which of the following molecule has the non-zero dipole moment

asked Mar 6, 2014 by sreemathi.v

1 answer

The square pyramidal molecular shape is adopted by

asked Mar 5, 2014 by sreemathi.v

1 answer

Identify the end product in the following sequence

asked Mar 4, 2014 by sreemathi.v

1 answer

The correct acidity order of the following is :

asked Feb 24, 2014 by meena.p

1 answer

Consider the following reaction number of stereo isomers formed in this reaction is

asked Feb 21, 2014 by sreemathi.v

1 answer

Four moles of electrons were transferred from anode to cathode in an experiment of electrolysis of water.The total volume of two gases produced will be approximately(in litre) at STP.

asked Feb 17, 2014 by sreemathi.v

1 answer

Solve and get solutions : $ \bigg( x +y \large\frac{dy}{dx}\bigg)=\bigg( y -x \large\frac{dy}{dx}\bigg) \bigg(x^4+\large\frac{y^6}{x^2}$$+3 (x^2y^2+y^4)\bigg)$

asked Feb 5, 2014 by meena.p

1 answer

Find the area of $\Delta ABC$ where AC is focal chord of the parabola $y^2=4ax$ & B is the vertex of parabola $y^2=4ax$?

asked Feb 5, 2014 by sreemathi.v

1 answer

The ________ sphere is enclosed in brackets in formulas for complex species, and it includes the central metal ion plus the coordinated groups.

asked Feb 3, 2014 by sreemathi.v

1 answer

Which of the following is used to produce ratio waves of constant amplitude

asked Jan 28, 2014 by meena.p

1 answer

The alkaline earth metal whose carbonate has no natural occurence is

asked Jan 28, 2014 by sreemathi.v

1 answer

Find the mean of first $n$ odd natural numbers.

asked Jan 24, 2014 by thanvigandhi_1

1 answer

The number of electrons involved in the manufacture of 1mole of $H_2O_2$ from 50% of $H_2SO_4$

asked Jan 23, 2014 by sreemathi.v

1 answer

Th type of bond formed by CO with haemoglobin in blood is

asked Jan 21, 2014 by sreemathi.v

1 answer

In a hydrogen atom,if energy of an electron in ground state is -13.6eV,then that in the $2^{nd}$ excited state is :

asked Jan 13, 2014 by sreemathi.v

1 answer

Insulin contains 3.4% sulphur.The minimum mol weight of insulin is :

asked Jan 9, 2014 by sreemathi.v

1 answer

If $\large\frac{1}{x+y}$, $\large\frac{1}{xy}$, $\large\frac{1}{y+z}$ are in AP, $x, y, z$ are in

asked Jan 3, 2014 by yamini.v

1 answer

The line through the point $\hat i+3\hat j+2\hat k$ and $\perp$ to the lines $\overrightarrow r=(\hat i+2\hat j-\hat k)+\lambda(2\hat i+\hat j+\hat k)$ and $\overrightarrow r=(2\hat i+6\hat j+\hat k)+\mu (\hat i+2\hat j+3\hat k)$ is ?

asked Jan 3, 2014 by rvidyagovindarajan_1

1 answer

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