State the dimension of the nucleus from Rutherford experiment.
State the limitations of plum pudding model of the atom.
The transition from the state $n = 4$ to $n = 3$ in a hydrogen-like atom results in ultraviolet radiation. Infrared radiation will be obtained in the transition
Match List $- I$ (Experiment performed) with List $-II$ (Phenomena discovered/associated) and select the correct option from the options given the lists
List $- I$ | List $- II$ |
$(1)$ Davisson and Genner | $(i)$ Wave nature of electrons |
$(2)$ Millikan's oil drop experiment | $(ii)$ Charge of an electron |
$(3)$ Rutherford experiment | $(iii)$ Quantisation of energy levels |
$(4)$ Franck-Hertz experiment | $(iv)$ Existence of nucleus |
An alpha nucleus of energy $\frac{1}{2}mv^2$ bombards a heavy nuclear target of charge $Ze.$ Then the distance of closest approach for the alpha nucleus will be proportional to
According to classical theory, Rutherford atom was