A body of mass 2 kg is hung on a spring balance mounted vertically in a lift. If the lift descend
If ω be an imaginary nth root of unity ,then $$\underset{r=1}{\overset{
The sample of the same gas, x, y and z, for which the ratio of specific heats γ =3/2 have i
The rate constant of a zero order reaction is 0.2 mol dm−3h&minus
