If $$\upsilon_{1}$$ is the frequency of the series limit of Lyman series, $$\upsilon_{2}$$ is the
The highest magnetic moment is shown by the transition metal with the configuration:
1)
A particle of mass $$m$$ moving in the $$x$$-direction with speed $$2v$$ is hit by another partic
The number of solutions of the equation $$z^2+\overline {z}=0$$ is
1) 4 2)
