List of practice Questions

A solid cylinder and a hollow cylinder, both of the same mass and same external diameter are released from the same height at the same time on an inclined plane. Both roll down without slipping. Which one will reach the bottom first?
A gramophone record is revolving with an angular velocity $\omega$. A coin is placed at a distance $r$ from the centre of the record. The static coefficient of friction is $\mu$. The coin will revolve with the record if
The set which represents the isotope, isobar and isotone respectively is
The ratios of the distance traversed, in successive intervals of time by a body, falling from rest, are
The amount of heat evolved when $500 \,cm^3$ of $0.1 \,M \,HCl$ is mixed with $200\, cm^3$ of $0.2\,M \,NaOH$ is _______
The correct IUPAC name of $K_2[Ni(CN)_4]$ is _______
The empirical formula of a non-electrolyte is $CH_2O$. A solution containing $6 \,g$ of the compound exerts the same osmotic pressure as that of $0.05\, M$ glucose solution at the same temperature. The molecular formula of the compound is
The diagram of Labeo rohita is given below. Identify the parts labelled A, B, C, D, E, F, G.
Which one of the following pairs is an example for lateral meristem?
The temperature of a gas contained in a closed vessel of constant volume increases by $1^\circ$C when the pressure of the gas is increased by $1\%$. The initial temperature of the gas is ..........
Two smalI spheres of masses $M_1 $ and $M_2$ are suspended by weightless insulating threads of lengths $ L_1$ and $ L_2$. The spheres carry charges $Q_1$ and $Q_2$ respectively. The spheres are suspended such that they are in level with one another and the threads are inclined to the vertical at angles of $\theta_1 $ and $\theta_2$ as shown. Which one of the following conditions is essential, if $\theta_1 = \theta_2$ ?
The spin only magnetic moment of $Mn^{+4}$ ion is nearly____
There is a uniform electric field of intensity $E$ which is as shown. How many labelled points have the same electric potential as the fully shaded point?
The condition for the line $y = mx +c$ to be a normal to the parabola $y = 4ax$ is _______
The set of quantum numbers for the outermost electron for copper in its ground state is ___________
The set of real values of x for which $ f(x) = \frac {x}{log\, x}$ increasing, is
$P_4O_{10}$ is the anhydride of
If $y'' - 3y' + 2y = 0$ where $y(0) = 1$, $y'(0) = 0$, then the value of $y$ at $x \,= log_e \,2$ is
All pathogens are parasites but all parasites are not pathogens. Majority of the parasites confer benefits to the host.
For measurement of potential difference, potentiometer is preferred in comparison to voltmeter because
How many gram-equivalents of $ NaOH $ are required to neutralise $ 25 \,cm^3 $ of a decinormal $ HCl $ solution?
In a parallel plate capacitor, the capacity increases if
The orbital frequency of an electron in the hydrogen atom is proportional to
The equation of a simple harmonic progressive wave is given by $ y = A \,sin \,(100\, \pi t - 3x) $ . Find the distance between $ 2 $ particles having a phase difference of $ \frac{\pi}{3} $ .
Which of the following relation is true?