Recent questions tagged q14

What fraction of alphabets are made of semicircles and straight lines

asked Oct 21, 2017 by priyanka.c

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Young's double slit experiment is first performed in air and then in a medium other than air. It is found that 8th bright fringe in the medium lies where 5th dark fringe lies in air. The refractive index of the medium is nearly

asked Oct 10, 2017 by meena.p

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A coil of one loop is made from a wore of length L and thereafter a coil of two loops is made from same wire, then the ration of magnetic field at the centre of coils will be:

asked Oct 9, 2017 by priyanka.c

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Find out the number of difference between the number of oranges sold during week 3 and week 2

asked Oct 2, 2017 by priyanka.c

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Mr. Atif family went on holidays, they spent Rs 3565 on petrol, Rs 7765 on food and Rs 7800 on stay. They also spent Rs 2308 on sight seeing. How much did their holiday cost them?

asked Sep 25, 2017 by priyanka.c

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Find the quotient and remainder 57298 ÷ 66

asked Sep 21, 2017 by priyanka.c

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Find the circumference of the following figure. Represent the following figure in centimeters

asked Sep 18, 2017 by priyanka.c

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Which of the following letter patterns follows the same rule as the shape pattern shown below?

asked Sep 7, 2017 by priyanka.c

1 answer

How many 8's are there in the following number sequence which are immediately followed by '5' and not immediately followed by 3 <br>$6\; 3\; 8\; 6\; 2\; 6\; 4\; 8\; 5\; 7\; 1\; 8\; 3\; 6\; 4\; 8\; 5\; 9\; 8\; 3\; 4\; 6\; 8\; 3$

asked Sep 1, 2017 by priyanka.c

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Put the correct sign in the following statement <br> 7022 ____ 700 + 20 + 2

asked Aug 14, 2017 by priyanka.c

1 answer

Find the missing fraction $\frac{5}{6} + \frac{8}{12} = \frac{7}{4} -$____

asked Aug 4, 2017 by priyanka.c

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Which of the following is not equal to $24 \times 5$ ?

asked Aug 4, 2017 by priyanka.c

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Two long and parallel straight wires A and B carrying currents of $8.0\;A$ and $5.0 \;A$ same direction are separated by a distance of $4.0\;cm$ . What is the direction of the magnetic field on a 10 cm section of wire A?

asked Jul 23, 2015 by meena.p

1 answer

A short bar magnet of magnetic moment $m= 0.32 \;J/T$. is placed in a uniform magnetic field of $0.15 \;T$. If the bar is free to rotate in the plane of the field, Which orientation would correspond to its stable equilibrium ? What is the potential energy of the magnet?

asked Jul 10, 2015 by meena.p

1 answer

A man in an insulated metallic cage does not receive a shock , even when the cage connected to a high voltage source. why ?

asked Apr 21, 2015 by meena.p

1 answer

Find the equation of ellipse whose eccentricity is $\large\frac{2}{3}$ , latus rectum is 5 and the centre is (0, 0).

asked Oct 9, 2014 by sreemathi.v

1 answer

IQ of a person is given by the formula $IQ= \large\frac{MA}{CA} $$ \times 100$ Where MA is a mental age and CA is chronological age. If $80 \leq IQ \leq 140$ for a group of 12 years old children find the range of their mental age .

asked Aug 5, 2014 by meena.p

1 answer

KCl crystallizes in the same type of lattice as does $NaCl$.Given that,$\large\frac{r_{Na^+}}{r_{Cl^-}}=$$0.5,\large\frac{r_{Na^+}}{r_{K^+}}=$$0.7$.Calculate the ratio of the side of the unit cell for KCl to that for NaCl and the ratio of density of NaCl to that for KCl.

asked Aug 1, 2014 by sreemathi.v

1 answer

Solve the following system of inequalities graphically $3x+2y \leq 150; x +4y \leq 80 ; x \leq 15 ; y \geq 0, x \geq 0 $

asked Aug 1, 2014 by meena.p

1 answer

Solve the given inequalities for real $x: 37 -(3x+5) \geq 9x -8 (x-3)$

asked Jul 25, 2014 by meena.p

1 answer

Find the equations of the hyperbola satisfying the given conditions : vertices $(\pm 7,0 ) , e = \large\frac{4}{3}$

asked Jul 21, 2014 by thanvigandhi_1

1 answer

Find the equation for the ellipse that satisfies the given conditions : Ends of major axis $ (0, \pm \sqrt 5 )$, ends of minor axis $(\pm 1, 0)$

asked Jul 18, 2014 by thanvigandhi_1

1 answer

Find the equation of a circle with centre $(2,2)$ and passes through the point $(4,5)$.

asked Jul 13, 2014 by thanvigandhi_1

1 answer

If for a distribution $ \sum (x-5) =3,\sum (x-5)^2 =43$ and the total number of items is $18$. Find the mean and standard deviation .

asked Jul 4, 2014 by meena.p

1 answer

A variable line passes through a fixed point P. The algebraic sum of the perpendiculars drawn from the points (2, 0), (0, 2) and (1, 1) on the line is zero. Find the coordinates of the point P \[\] [Hint: Let the slope of the line be $m$. Then the equation of the line passing through the fixed point $P (x_1 , y_1 )$ is $y - y_1 = m (x - x_1 )$. Taking the algebraic sum of perpendicular distances equal to zero, we get $ y - 1 = m (x - 1). $ Thus $(x_1 , y_1 ) $ is $(1, 1)$.]

asked Jul 1, 2014 by thanvigandhi_1

1 answer

Given $P(A)=\large\frac{3}{5}$ and $P(B)=\large\frac{1}{5}$.Find P(A or B),if $A$ and $B$ are mutually exclusive events .

asked Jul 1, 2014 by sreemathi.v

1 answer

An experiment consists of rolling a die and then tossing a coin once if the number on the die is even.If the number on the die is odd,the coin is tossed twice.Write the sample space for the experiment

asked Jun 26, 2014 by sreemathi.v

1 answer

If there is a term containing $x^{2r}$ in $(x+\large\frac{1}{x^2})^{n-3}$ then

asked Jun 25, 2014 by sreemathi.v

1 answer

Find $n$ in the binomial $\big[\sqrt[3]{2} +\large\frac{1}{\sqrt[3]{3}} \big]^n$ if the ratio of $7^{th}$ term from the beginning to the $7^{th}$ term from the end is $\large\frac{1}{6}$

asked Jun 24, 2014 by sreemathi.v

1 answer

Prove that $\sum\limits_{r=0}^n 3^{r-n}C_r=4^n$

asked Jun 23, 2014 by sreemathi.v

1 answer

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