Discuss the experimental results of Geiger-Marsden's $\alpha$-particle scattering.
(N/A) The experimental results of the Geiger-Marsden $\alpha$-particle scattering experiment are summarized as follows:
$1$. $A$ typical graph of the total number of $\alpha$-particles scattered at different angles in a given interval of time is shown in the figure. The dots represent the experimental data points,and the solid curve is the theoretical prediction based on the assumption that the atom has a positively charged nucleus.
$2$. Most of the $\alpha$-particles pass through the gold foil without any significant deviation. This indicates that they do not suffer any collisions,implying that most of the space inside an atom is empty.
$3$. Only about $0.14 \%$ of the incident $\alpha$-particles scatter by more than $1^{\circ}$.
$4$. About $1$ in $8000$ $\alpha$-particles deflect by more than $90^{\circ}$,which suggests the presence of a small,dense,and positively charged nucleus at the center of the atom.
$1$. $A$ typical graph of the total number of $\alpha$-particles scattered at different angles in a given interval of time is shown in the figure. The dots represent the experimental data points,and the solid curve is the theoretical prediction based on the assumption that the atom has a positively charged nucleus.
$2$. Most of the $\alpha$-particles pass through the gold foil without any significant deviation. This indicates that they do not suffer any collisions,implying that most of the space inside an atom is empty.
$3$. Only about $0.14 \%$ of the incident $\alpha$-particles scatter by more than $1^{\circ}$.
$4$. About $1$ in $8000$ $\alpha$-particles deflect by more than $90^{\circ}$,which suggests the presence of a small,dense,and positively charged nucleus at the center of the atom.
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The distance of closest approach of an alpha particle to a nucleus when the alpha particle moves towards the nucleus with linear momentum $P$ is $d$. What is the distance of closest approach of the alpha particle to the nucleus if the linear momentum of the alpha particle is $1.5 P$?
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View SolutionThe graph which depicts the results of the Rutherford gold foil experiment with $\alpha$-particles is:
$\theta$: Scattering angle
$Y$: Number of scattered $\alpha$-particles detected
(Plots are schematic and not to scale)
$\theta$: Scattering angle
$Y$: Number of scattered $\alpha$-particles detected
(Plots are schematic and not to scale)
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Which statement about the Rutherford model of the atom is not true?
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View SolutionThe size of an atom is of the order of
Easy
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