Question

Some laws/processes are given in Column I. Match these with the physical phenomena given in Column II and
indicate your answer by darkening appropriate bubbles in the 4 4 matrix given in the ORS.

Answer 1

The X-rays contains $K_{\alpha },K_{\beta }$ etc and these are the transitions between two atomic level . So $A\to 1$

Also Hydrogen spectrum has quantized energy levels i.e $E_n=-\frac{136.6}{n^2}$ and it contains so many transitions between two energy levels like-Lyman, Balmer etc. So $A\to 3$

The photo electric effect is the emission of electron when photon incident on a metal. In beta minus decay, one neutron decay into a proton, an electron and an anti-neutrino. So, So $B\to 2,4$

Mosley's law is an empirical law concerning the characteristic X-rays.So $C\to 1$

The Einstein's photoelectric equation is $h\nu =K{E}_{max}-h{\nu }_0$. So $D\to 2$