What is impact parameter ?
An electron having de-Broglie wavelength $\lambda$ is incident on a target in a X-ray tube. Cut-off wavelength of emitted $X$-ray is :
The number of completely filled shells for the element ${ }_{16} S ^{32}$ is
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
What is head-on collision ? For that tell the impact parameter.
Which one did Rutherford consider to be supported by the results of experiments in which $\alpha - $ particles were scattered by gold foil?