Describe Geiger-Marsden scattering experiment.

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12.Atoms

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Describe Geiger-Marsden scattering experiment.

Option A

Option B

Option C

Option D

Solution

As shown in above figure, they directed a beam of $5.5 \mathrm{MeV} \alpha$-particle emitted from a ${ }_{83}^{214} \mathrm{Bi}$ radioactive source at a thin metal foil made of gold. $\alpha$-particles emitted by a ${ }_{83}^{214} \mathrm{Bi}$ radioactive source were collimated into a narrow beam by their passage through lead bricks. As shown in the figure below, the beam was allowed to fall on a thin foil of gold of thickness $2.1 \times 10^{-7} \mathrm{~m}$.

The scattered $\alpha$-particles on striking the screen produced brief light flashes (scintillations).

These flashes may be viewed through a microscope and the distribution of the number of scattered particles may be studied as a function of angle of scattering.

Standard 12

Physics

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

medium

(AIEEE-2006)

When the accelerating voltage applied on the electrons increased beyond a critical value

normal

The figure represents the observed intensity of $X-$rays emitted by an $X-$ray tube, as a function of wavelength. The sharp peaks $A$ and $B$ denote

normal

Ratio of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is

normal

A $10\; kg$ satellite circles earth once every $2 \;hours$ in an orbit having a radius of $8000\; km$. Assuming that Bohr's angular momentum postulate applies to satellites just as it does to an electron in the hydrogen atom, find the quantum number of the orbit of the satellite.

medium

Describe Geiger-Marsden scattering experiment.

Solution

Similar Questions

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

When the accelerating voltage applied on the electrons increased beyond a critical value

The figure represents the observed intensity of $X-$rays emitted by an $X-$ray tube, as a function of wavelength. The sharp peaks $A$ and $B$ denote

Ratio of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is

A $10\; kg$ satellite circles earth once every $2 \;hours$ in an orbit having a radius of $8000\; km$. Assuming that Bohr's angular momentum postulate applies to satellites just as it does to an electron in the hydrogen atom, find the quantum number of the orbit of the satellite.

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