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Recent questions tagged easy

A satellite of mass m is orbiting the earth at a height 'h' from its surface. If M is Mass of the earth and R its radius then how much energy must be spent to pull the satellite out of the earth's gravitational field?

asked Aug 22, 2013 by meena.p

1 answer

If the distance between Earth and the sun were half its present value, the number of days in a year would be

asked Aug 22, 2013 by meena.p

1 answer

Refer to the image below :

asked Aug 22, 2013 by sreemathi.v

1 answer

Predict the product

asked Aug 22, 2013 by sreemathi.v

1 answer

Which of the following represents the correct graph for SN2 reaction?

asked Aug 22, 2013 by sreemathi.v

1 answer

Refer to the below image :

asked Aug 22, 2013 by sreemathi.v

1 answer

The predominant product formed when 3− methyl −2−pentene reacts with $HOCl$ is

asked Aug 22, 2013 by sreemathi.v

1 answer

In which of the following pair one species is incorrectly indicated which would give higher Substitution /Elimination ratio when it reacts with isopropyl bromide.

asked Aug 22, 2013 by sreemathi.v

1 answer

Refer to the below equation :

asked Aug 21, 2013 by sreemathi.v

1 answer

In which of the following case increase in solvent polarity causes a large in rate of the reaction.

asked Aug 21, 2013 by sreemathi.v

1 answer

Refer to the below equations :

asked Aug 21, 2013 by sreemathi.v

1 answer

$R-L$------------>$R-X$. L is a good leaving group .The rate of the reaction is maximum when $Li-X$ is

asked Aug 21, 2013 by sreemathi.v

1 answer

The reaction $R-Cl+R'ONa$---------->$ROR'+NaCl$.The reaction is catalysed by the addition of small amounts of $NaI$ because

asked Aug 21, 2013 by sreemathi.v

1 answer

The correct decreasing order of vapour phase dipole moments of $CH_3-x$ is as follows

asked Aug 21, 2013 by sreemathi.v

1 answer

The feasible region for an LPP is shown in the figure below ( fig 12.13 in textbook ).Let $F=3x-4y$ be the objective function.Minimum value of $F$ is

asked Aug 21, 2013 by sreemathi.v

1 answer

The feasible region for an LPP is shown in the fig.12.13.Let $F=3x-4y$ be the objective function.Maximum value of $F$ is

asked Aug 21, 2013 by sreemathi.v

1 answer

The feasible solution for a LPP is shown in fig.12.12.Let $Z=3x-4y$ be the objective function.(Maximum value of $Z$+Minimum value of $Z$) is equal to

asked Aug 21, 2013 by sreemathi.v

1 answer

In how many ways can 10 different marbles be distributed between 2 boys so that one of them get 7?

asked Aug 20, 2013 by rvidyagovindarajan_1

1 answer

How many numbers are there between 20000 and 30000 in which the digits are 2,3,5,6,7 and each digit can be repeated any number of times.

asked Aug 20, 2013 by rvidyagovindarajan_1

1 answer

The feasible solution for a LPP is shown in fig.12.12.Let $Z=3x-4y$ be the objective function.Maximum of $Z$ occurs at

asked Aug 20, 2013 by sreemathi.v

1 answer

The feasible solution for a LPP is shown in fig.12.12.Let $Z=3x-4y$ be the objective function.Minimum of $Z$ occurs at

asked Aug 20, 2013 by sreemathi.v

1 answer

In how many ways can 7 plus (+) signs and 4 minus (-) signs can be arranged in a row so that no two minus signs are together?

asked Aug 20, 2013 by rvidyagovindarajan_1

1 answer

How many chords can be drawn for a circle with 21 points on the circle?

asked Aug 20, 2013 by rvidyagovindarajan_1

1 answer

In the figure below ,the feasible region (shaded)for a LPP is shown .Determine the maximum and minimum value of $Z=x+2y$

asked Aug 20, 2013 by sreemathi.v

1 answer

The feasible region for a LPP is shown in fig 12.10.Evaluate $Z=4x+y$ at each of the corner points of this region.Find the minimum value of $Z$,if it exists.

asked Aug 20, 2013 by sreemathi.v

1 answer

The feasible region for a LPP is shown in fig.12.9.Find the maximum value of $z=11x+7y$

asked Aug 20, 2013 by sreemathi.v

1 answer

The feasible region for a LPP is shown in fig.12.9.Find the minimum value of $z=11x+7y$

asked Aug 20, 2013 by sreemathi.v

1 answer

Feasible region (shaded) for a LPP is shown. Maximise $z=5x+7y$

asked Aug 20, 2013 by sreemathi.v

1 answer

Determine the maximum value of $z=3x+4y$ if the feasible region (shaded) for a LPP is shown in fig:

asked Aug 20, 2013 by sreemathi.v

1 answer

Find the maximum value of \(2x^3 – 24x + 107\) in the interval \([-3,-1]\)

asked Aug 19, 2013 by sreemathi.v

1 answer

For what value of \( \lambda \) is the function defined by \(f\) defined by $ f(x) = \left\{ \begin{array} {1 1} \lambda(x^2 - 2x) ,& \quad\text{ if $ x $ \(\leq 0\)}\\ 4x + 1,& \quad \text{if $x$ > 0}\\ \end{array} \right.$ What about continuity at \( x = 1\)?

asked Aug 19, 2013 by sreemathi.v

1 answer

Find the intervals in which the function $f$ given by $f (x) = 2x^2 – 3x$ is $ (b)\; strictly\; decreasing$

asked Aug 16, 2013 by sreemathi.v

1 answer

Total no. of words with or without meaning formed by 3 vowels and 3 consonants taken from 5 vowels and 6 consonants is?

asked Aug 15, 2013 by rvidyagovindarajan_1

1 answer

How many 10 digit numbers are there using the digits 1 and 2 ?

asked Aug 15, 2013 by rvidyagovindarajan_1

1 answer

How many 9 digit numbers can be formed from the numbers 223355888 so that the odd digits occupy even positions.

asked Aug 14, 2013 by rvidyagovindarajan_1

1 answer

Four dice are rolled. The no. of possible outcomes in which at least one dice shows 2 is ?

asked Aug 14, 2013 by rvidyagovindarajan_1

1 answer

A polygon has 44 diagonals. The no. of sides of the polygon = ?

asked Aug 13, 2013 by rvidyagovindarajan_1

1 answer

The no. of ways in which 6 men and 5 women can sit at a round table so that no two women sit together is?

asked Aug 13, 2013 by rvidyagovindarajan_1

1 answer

The no. of diagonals of $n$ sided polygon =?

asked Aug 13, 2013 by rvidyagovindarajan_1

1 answer

The no. of arrangements of the letters of the word 'BANANA' in which the 2 $N^s$ do not come adjacently is?

asked Aug 12, 2013 by rvidyagovindarajan_1

1 answer

The no. of arrangements of the letters of the word 'BANANA' in which the 2 $n^s$ do not come adjacently is?

asked Aug 12, 2013 by rvidyagovindarajan_1

0 answers

There are 12 points in plane out of which 5 points are collinear. How many different lines can be drawn using these points?

asked Aug 12, 2013 by rvidyagovindarajan_1

1 answer

There are 12 points in a plane out of which 7 points lie on a st. line (collinear). How many triangles can be formed using these points as vertices?

asked Aug 12, 2013 by rvidyagovindarajan_1

1 answer

The interval on which the function $f(x)=2x^3+9x^2+12x-1$ is decreasing is :

asked Aug 12, 2013 by sreemathi.v

1 answer

Four couples (husband and wife) decide to form a committee of 4 members. How many ways this can be done so that no couple finds a place.

asked Aug 11, 2013 by rvidyagovindarajan_1

1 answer

The number of positive integral solutions of the equation $xyz=30$ is ?

asked Aug 11, 2013 by rvidyagovindarajan_1

1 answer

A rocket is launched with velocity 10 km/s if radius of earth is R, then maximum height attained by it will be

asked Aug 10, 2013 by meena.p

1 answer

If radius of the earth were to shrink by one percent, its mass remaining same the value of g on the earth's surface would

asked Aug 10, 2013 by meena.p

1 answer

A simple pendulum has a time period $T_1$ When on earth's surface, and $T_2$ When taken to a height R above the earth's surface, where R is radius of earth. Then $\large\frac{T_2}{T_1}$ is

asked Aug 10, 2013 by meena.p

1 answer

Two satellites have their masses in the ratio $3:1$ The ratio of the orbit (circular ) are $1:4$ then the ratio of total mechanical energy of A and B

asked Aug 10, 2013 by meena.p

1 answer

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