List of practice Questions

The sequence of origin of life may be

The set of intelligent students in a class is

The set of real values of x for which $\log_{0.2} \frac{x +2}{x} \leq 1$ is

The self inductance $L$ of a solenoid of length $l$ and area of cross-section $A$, with a fixed number of turns $N$ increases as

The self inductance of an inductor coil having $100$ turns is $20\, mH$. The magnetic flux through the cross-section of the coil corresponding to a current of $4 \,mA$ is

The sequence of acidic character is

The segments of earthworms are

The second, third and fourth terms in the binomial expansion $(x+a)^n$ are $240$, $720$ and $1080$, respectively. Find $x$, $a$ and $n$ respectively.

The satellite of mass m revolving in a circular orbit of radius r around the earth has kinetic energy E. Then its angular momentum will be

The second most electronegative element of the periodic table belongs to which family and which period respectively ?

The Rubin number which was proposed by Ostwald as an alternative to the Gold number in order to measure the protective efficiency of a lyophillic colloid may be defined as the

The S.D. of the first n natural numbers is

The root mean square velocity, $v_{rms}$ , the average velocity $v_{av}$ and the most probable velocity,$v_{mp}$ of the molecules of the gas are in the order:

The RNAi stands for

The role of inductance is equivalent to :

The root mean square speed of gas molecules

The relation between $v_{rms}$ velocity, and the most probable velocity, $v_{mp}$ , of a gas is:

The relation between a, b, a' and b' such that the two lines ax + by = c and a'x + b'y = c' are perpendicular is

The relation between p and T during the adiabatic process with a monoatomic gas is $pT^n$= constant. What is the value of n = ?

The relation between the slope of isothermal curve and slope of adiabatic curve

The refractive index of glass with respect to air is 1.6. The refractive index of air w.r.t glass is:

The refractive index of glass is $1.5$ for light waves of $\lambda = 6000 \,?$ in vacuum. Its wavelength in glass is

The reaction $Cr_2O_3 + 2Al \to Al_2O_3 + 2Cr (\Delta G^? = - 421\, kj)$ is thermodynamically feasible due to -ve value of $\Delta G$. Why does this reaction not take place at room temperature?

The reaction of Lucas reagent is fastest with

The reaction $ {2SO2 +O2 <=> 2SO3 +}$ Heat, will be favoured by