List of practice Questions

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
The reaction between alcohol and carboxylic acidsis called
The reaction $CH_3CH_2Br + OH^- \rightarrow CH_3CH_2OH + Br^-$ is an example of :
The ratio of the speed of the electron in the ground state of hydrogen atom to the speed of light in vacuum is
The ratio of specific charge of the electron and nucleus of hydrogen atom is
The ratio of one micron to one nanometre is
The ratio of root mean square velocities of $ O_3$ and $O_2$ is
The ratio of shearing stress to the shearing strain is defined as
The ratio of $ {Fe^{3+}}$ and $ {Fe^{2+}}$ in $ {Fe_{0.9} S_{1.0}}$ is
The ratio of intensity at the centre of a bright fringe to the intensity at a point distant one fourth of the distance between two successive bright fringes will be
The ratio of lateral strain to the longitudinal strain of wire is called :
The ratio of magnitude of electrostatic force and gravitational force for an electron and a proton is
The ratio in which the line $3x + 4y + 2 = 0$ divides the distance between the lines $3x + 4y + 5 = 0$ and $3x + 4y - 5 = 0$ is
The ratio of charge to mass of an electron in coulombs per gram was determined by J.J. Thomson. He determined this ratio by measuring the deflection of cathode rays in electric and magnetic fields. What value did he find for this ratio?
The ratio of diameters of two wires of same V material is n : 1 The length of each wire is 4m. on applying the same load, the increasing length of thin wire will be(n > 1)
The ratio of earth?? orbital angular momentum (about the sun) to.its mass is $4.4 \times 10^{15}\, m^2/s$. The area enclosed by earths orbit approximately is (in $m^2$)
The rating of fuse wire is expressed in terms of :
The r.m.s. velocity of oxygen molecule at $16^{\circ} C$ is 474 m/sec. The r.m.s. velocity in m/s of hydrogen molecule at $127^{\circ } C$ is