Recent questions tagged q10

What is the greatest factor of a number?

asked Oct 21, 2017 by priyanka.c

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If Force $F = 500 - 100 t$, then function of impulse with time will be :

asked Oct 8, 2017 by priyanka.c

1 answer

Suppose the charge of a proton and an eleckon differ slightly. One of them is - e, the other is $(e + \Delta e)$. If the net of electrostatic force and gravitational force between two hydrogen atoms placed at a distance d much greater than atomic size. apart is zero, then $\Delta_e$ is of the order of [Given mass of hydrogen $m_h= 1.67 \times 10^{27}\;kg]$

asked Oct 7, 2017 by meena.p

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What is the value of 50 coins of 50 paise

asked Oct 2, 2017 by priyanka.c

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Fill in the sign for the following expression <br> 120 _____ CC

asked Sep 25, 2017 by priyanka.c

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****'s school lasts 6 hours 30 minutes excluding breaks and lunch. Break period is of 15 minutes and lunch hours is 30 minutes. There are 2 break periods. What time does the school starts if it ends at 4:30pm.

asked Sep 20, 2017 by priyanka.c

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A cook bought 5 kg potatoes and 10 kg tomatoes. If 1 kg of tomato cost Rs 25 and 1 kg of potato costs Rs 20. What is the total amount paid by the cook

asked Sep 18, 2017 by priyanka.c

0 answers

Evaluate $745 \times 56 \times 0 \times 7$

asked Sep 1, 2017 by priyanka.c

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Arrange the following number in ascending order $(50+75), (49 + 60), (25+14), (90+12), (17+34)$

asked Aug 31, 2017 by priyanka.c

0 answers

Find the missing length when the Area is given in the following figure

asked Aug 16, 2017 by priyanka.c

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$(7 \times 8) + (11 \times 9) = (35 + 11) + 7 \times$ ____ $+ (2 \times 23)$ <br>Find the missing number

asked Aug 4, 2017 by priyanka.c

0 answers

Now the time is 8:45. What will be the time after 50 minutes?

asked Aug 4, 2017 by priyanka.c

0 answers

What is the direction of the magnetic force per unit length on a wire carrying a current $8\;A$ and making an angle of $30^{\circ}$ with the direction of a uniform magnetic field of $0.15\;T$?

asked Jul 23, 2015 by meena.p

1 answer

The earth may have reversed the direction of its field several times during its history of 4 to 5 billion years. How can geologists know about the earth field in such distant past ?

asked Jul 9, 2015 by meena.p

1 answer

If the electron drift speed is so small , and the electron's charge is small , how can we still obtain large amount of current in a conductor ?

asked Jun 29, 2015 by meena.p

1 answer

An electrostatic field line cannot be discontinuous , why ?

asked Apr 21, 2015 by meena.p

1 answer

Find the equation of a circle concentric with the circle $x^2+y^2-6x+12y+15=0$ and has double of its area.

asked Oct 9, 2014 by sreemathi.v

1 answer

If boiling point of an aqueous solution is 100.1$^{\large\circ}C$,what is its freezing point.Given,latent heat of fusion and vaporization of water as $80cal g^{-1}$ and $540cal g^{-1}$ respectively.

asked Aug 6, 2014 by sreemathi.v

1 answer

Solve the inequalities and represent the solution graphically on number line. $ 5(2x-7) - 3(2x+3) \leq 0 ; 2x+19 \geq 6x+47 $

asked Aug 5, 2014 by meena.p

1 answer

A compound formed by elements A and B crystallizes in cubic structure where A atoms are at the corners of a cube and B atoms are at the face-centre.What is the formula of the compound?

asked Aug 1, 2014 by sreemathi.v

1 answer

Solve the following system of inequalities graphically $3x+4y \leq 60; x+3y \leq 30 ; x \geq 0 ;y \geq 0$

asked Jul 31, 2014 by meena.p

1 answer

Solve the given inequality graphically in two, dimensional plane . $ x > -3$

asked Jul 30, 2014 by meena.p

1 answer

Solve the inequality for real $x, \large\frac{x}{3} > \frac{x}{2} $$+1$

asked Jul 25, 2014 by meena.p

1 answer

Find the equations of the hyperbola satisfying the given conditions : Foci $(\pm 5, 0)$, the transverse axis is of length $8$

asked Jul 21, 2014 by thanvigandhi_1

1 answer

Find the equation for the ellipse that satisfies the given conditions : Vertices $(\pm 5, 0), foci (\pm 4, 0)$

asked Jul 16, 2014 by thanvigandhi_1

1 answer

Find the equation of the parabola that satisfies the given conditions : Vertex (0,0); focus (–2,0)

asked Jul 14, 2014 by thanvigandhi_1

1 answer

Find the equation of the circle passing through the points (4,1) and (6,5) and whose centre is on the line 4x + y = 16

asked Jul 13, 2014 by thanvigandhi_1

1 answer

The number lock of a suitcase has four wheels,each labelled with 10 digits (ie) from 0 to 9.The lock opens with a sequence of four digits with no repeats.What is the probability of a person getting the right sequence to open the suitcase?

asked Jul 7, 2014 by sreemathi.v

1 answer

The frequency distribution given below find the standard deviation

asked Jul 3, 2014 by meena.p

1 answer

If the intercept of a line between the coordinate axes is divided by the point (–5 4) in the ratio 1 : 2, then find the equation of the line.

asked Jul 1, 2014 by thanvigandhi_1

1 answer

The diameters of circles(in mm) drawn in a design are given below . Calculate the std. deviation and mean diameter of the circles.

asked Jun 30, 2014 by meena.p

1 answer

An experiment consists of tossing a coin and then throwing it second time if head occurs.If a tail occurs on the first toss,then a die is rolled once.Find the sample space.

asked Jun 26, 2014 by sreemathi.v

1 answer

Find the mean deviation about the mean for data :

asked Jun 26, 2014 by meena.p

1 answer

If the third term in the binomial expansion if $(1+x)^m$ is $-\large\frac{1}{8}$$x^2$ then the rational value of m is

asked Jun 25, 2014 by sreemathi.v

1 answer

If the coefficient of second,third and fourth terms in the expansion of $(1+x)^{2n}$ are in A.P.Show that $2n^2-9n+7=0$

asked Jun 24, 2014 by sreemathi.v

1 answer

Find the expansion of $(3x^2-2ax+3a^2)^3$ using Binomial theorem

asked Jun 24, 2014 by sreemathi.v

1 answer

The coefficients of the $(r-1)^{th},r^{th}$ and $(r+1)^{th}$ terms in the expansion of $(x+1)^n$ are in the ratio of $1 : 3 : 5$. Find both $n$ and $r$.

asked Jun 23, 2014 by sreemathi.v

1 answer

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