Question

`{:(,"Column-I",,"Column-II",),((A),"Cathode rays",(p),"Helium nuclei",),((B),"dumb-bell",(q),"Uncertainty principle",),((C),"Alpha particles",(r),"Electromagnetic radiation" ,),((D),"Moseley",(s),"p-orbital",),((E),"Heisenberg",(t),"Atomic number",),((F),"X-ray",(u),"electrons",):}`

Answer 1

Correct Answer - `(A) rarr u ; (B) rarr s ; (C ) rarr p ; (D) rarr t ; (E) rarr q ; (F) rarr r`