List of practice Questions

Which of the following is not an example of perfectly inelastic collision
A steady current flow in a metallic conductor of non-uniform cross-section. The quantity/quantities remaining constant along the whole length of the conductor is/are
The pentose sugar in $DNA$ and $RNA$ has the
Equation of the bisector of the acute angle between lines $3x + 4y + 5 = 0$ and $12x -5y - 7 = 0$ is
The value of $7 \log\left(\frac{16}{15} \right) +5 \log\left(\frac{25}{24}\right) + 3 \log\left(\frac{81}{80}\right) $ is equla to
A bag contains $3$ white and $5$ black balls. One ball is drawn at random. Then the probability that it is white is:
$\displaystyle\lim_{x\to0} \frac{\sin x}{x}$ is equal to
The length of the latus rectum of the parabola $169\left[(x-1)^{2}+(y-3)^{2}\right]=(5 x-12 y+ 17) ^{2}$ is:
If $2 i + j - k$ and $i -4 j +\lambda k$ are perpendicular to each other, then $\lambda$ is equal to:
Which of the integers A, B, C, D, E are odd numbers?
Statements:
I. A, B, C, D, E are consecutive integers.
II. A and B are prime numbers.
Statement:
1. All chalk is not cheese
2. The moon is made of cheese
Conclusion:
I. The moon is made of chalk
II. The moon is not made of chalk
Statement:
1. Some players are singers
2. All singers are tall
Conclusion:
I. Some players are tall
II. All players are tall
How are Harish and Sarita related?
Statements:
I. Harish's grandfather married Sarita's maternal aunt.
II. Harish and Sarita study in the same class.
How many students are there in a class?
Statements:
I. When arranged in alphabetical order, Dilip's name is the 15th and Vinod's is the 37th.
II. In reverse order, Vinod's name is 3rd.
The well known urinary antiseptic urotropine is formed when formaldehyde reacts with
This reaction is called
According to kinetic theory of gases
An ideal refrigerator has a freezer at a temperature of $-13^{\circ} C$. The coefficient of performance of the engine is $5$. The temperature of the air (to which heat is rejected) will be
Natural length of a spring is $60 \,cm$ and its spring constant is $4000 \,N / m$. A mass of $20\, kg$ is hung from it. The extension produced in the spring is $\left(\right.$ take $\left.g=9.8 \,m / s ^{2}\right)$ :
A cube has a side of length $1.2 \times 10^{-2} m$. Calculate its volume.
The magnitude of electric field intensity $E$, such that an electron placed in it would experience an electrical force equal to its weight, is given by
Fast neutrons can easily be solved down by
The force constant of a spring gun is $50 \,N / m$. If a ball of $20 \,g$ be shoot by the gun, so that its spring is compressed by $10 \,cm$, the velocity of the ball is:
The linear momentum $p$ of a body moving in one dimension varies with time $t$ according to the equation $p = a + bt^2$, where $a$ and $b$ are positive constant. The net force acting on the body is
A synthetic rubber which is resistant to the action of oils, gasoline and other solvents is