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Questions asked by balaji

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For two variables $x$ and $y$ with the same mean the two regression lines are $x+2y-5=0$ $ 2x+3y-8=0$ and variance $(x)=12$ Then $ \sigma_y$ is

asked Mar 26, 2014

1 answer

The function $f(x)=\large\frac{|x|}{x^2+2x}\qquad$$ x\neq 0$ and $f(0)=0$ is not continuous at $x=0$ because

asked Mar 26, 2014

1 answer

Evaluate: $\large \int \limits_0^1$$ x\;e^{x^2}\; dx$

asked Mar 21, 2014

1 answer

Write the value of the following: $\hat i \times (\hat j + \hat k)+ $$\hat j \times (\hat k + \hat i)+ $$\hat k \times (\hat i + \hat j)$

asked Mar 21, 2014

1 answer

If $\begin{pmatrix} a+4 &3b \\ 8 & -6 \end{pmatrix} = \begin{pmatrix} 2a+2 &b+2 \\ 8 & a-8b \end{pmatrix}$, write the value of $a-2b$.

asked Mar 21, 2014

1 answer

Given the following two statements, which of the following options that follow is TRUE?

asked Mar 17, 2014

2 answers

Carbohydrate

asked Mar 14, 2014

1 answer

Which of the following does not represent Charle's law?

asked Feb 5, 2014

1 answer

Which of the following does not represent Boyle's law?

asked Feb 5, 2014

3 answers

An oxide of nitrogen at NTP has a density equal to another oxide of Nitrogen at $12^{\circ}$. If we consider pressure conditions to be the same, what are the two oxides involved?

asked Feb 5, 2014

1 answer

At $0^{\circ}$, the density of carbon-di-oxide is the same as that of an oxide of nitrogen. The oxide of nitrogen is which of the following, considering the pressure conditions to be the same?

asked Feb 5, 2014

1 answer

In a closed container, if we increase the temperature of the vessel, the pressure also increases due to:

asked Feb 5, 2014

1 answer

According to Maxwell's distribution of velocities, with an increase in temperature, which of the following is true?

asked Feb 5, 2014

1 answer

Gas-A is kept in the left partition of the container with a temperature of T at pressure 2P. Gas-B is kept in the right part of the container with a temperature of 4T at pressure P. When what is the value of the Pressure P' when the partition is removed?

asked Jan 31, 2014

1 answer

Gas-A is kept in the left partition of the container with a volume 2V at pressure P. Gas-B is kept in the right part of the container with a volume of 3V at pressure P. Both the portions are the same temperature T. When what is the value of the Pressure P' when the partition is removed?

asked Jan 31, 2014

1 answer

Gas-A is kept in the left partition of the container with a volume V/n at pressure P. Gas-B is kept in the right part of the container with a volume of V/(n+1) at pressure P. Both the portions are the same temperature T. When what is the value of the Pressure P' when the partition is removed?

asked Jan 31, 2014

1 answer

Consider the following case. What is the value of P' ?

asked Jan 31, 2014

1 answer

Hot air balloon is an application of what law?

asked Jan 31, 2014

3 answers

Bursting of a soda bottle in summer is an example of ?

asked Jan 31, 2014

1 answer

Which of the following graphs will be linear with zero slope in case of an ideal gas?

asked Jan 31, 2014

1 answer

Two diatomic gases have denisities d1 and d2 under similar conditions. The ratio of the root mean square velocities is?

asked Jan 31, 2014

1 answer

A container contains an ideal gas. The wall is hit by "n" molecules / second, each of mass "m" and moving the same velocity "u". The force exerted by the molecules on the wall is?

asked Jan 31, 2014

1 answer

An ideal gas kept in vessel has rms spped of 200 m/s. If 10% of the gas leaks out of the vessel, then the rms speed of the remaining molecules is?

asked Jan 31, 2014

1 answer

A liquid is boiled and its temperature (T) versus Heat supplied (Q) graph is plotted. Which of the following is the correct graph?

asked Jan 31, 2014

1 answer

If for an ideal gas, $\large\frac{R}{C_v} $$= 0.29$, it's shape is?

asked Jan 31, 2014

1 answer

By using the properties of definite integrals,evaluate the integral $ \int\limits_{-10}^{10}\mid x+2 \mid\;dx$

asked Jan 31, 2014

1 answer

Suppose you roll 5 dice and sum up the highest 3 numbers. What is the probability that the sum is 18?

asked Jan 30, 2014

1 answer

Suppose that 5% of men and 0.25% of women have grey hair. A grey haired person is selected at random. What is the probability of this person being male? Assume that there are equal number of males and females.

asked Jan 30, 2014

1 answer

What is the angle between following planes $2x-3y+4z=1$ and $-x+y=4$?

asked Jan 30, 2014

1 answer

What is the area of the parallelogram having diagonals $ 3\bar{i}+\bar{j}-2\bar{k}\;and\;\bar{i}-3\bar{j}+4\bar{k}$?

asked Jan 30, 2014

1 answer

If $e^{x+y}=xy,$ what is $\large\frac{dy}{dx}$?

asked Jan 29, 2014

1 answer

Given $A=\begin{bmatrix} 3 & -3 & 4 \\2 & -3 & 4 \\0 & -1 & 1 \end{bmatrix}$ How can we express $A^{-1}$ in terms of A?

asked Jan 29, 2014

1 answer

If you flip a fair coin 19 times, what is the probability that you will end up with an even number of heads?

asked Jan 29, 2014

1 answer

Let $(f:R \to R)$ be defined as $(f(x)=2x+3.)$Find the function $(g(x):R \to R)$ such that $(g\;o\;f = f\;o\;g = I_R.)$

asked Jan 29, 2014

1 answer

Where can I find the NEET 2013 UG results? Thanks!

asked Jun 5, 2013

1 answer

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