Diffrraction of electron experiment to be observable

In summary, the diffraction of electron experiment requires the De Broglie's wavelength of the particles to be similar to the interatomic spacing. "Same order" in this context means they should have the same power of ten when written in scientific notation. This can also be determined by comparing the slit width to the incoming wavelength using the equation and a comfortable measurement angle of 1-5 degrees.
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desmond iking
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in my textbook , it states that for the diffrraction of electron experiment to be observable, the De Broglie's wavelength of the particles is of the same order as the interatomic spacing... i have a doubt here... what is the meaning of same order here?
 
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"same order" usually means the "order of magnitude" - it basically means that they should have the same power of ten when placed in scientific notation. It can refer to the order of the Taylor series approximation you may learn about later.

In this context it is a bit hand-wavey but serves as a filler until you learn the real theory.
Read: the dB wavelength has to be in the same ballpark as the slit width.

You can actually check this from the usual equation ... write the slitwidth as a function of the wavelength and the angular fringe spacing.
What is the smallest angle that can be comfortably measured - about 1deg? 2-5deg? plug it in and see what you get for the slit width. Compare with the incoming wavelength.
 
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What is diffraction of electrons?

Diffraction of electrons is a phenomenon in which electrons are scattered and their wave-like behaviors are observed. This can occur when electrons pass through a thin material or a series of closely spaced slits.

What is the purpose of the diffraction of electron experiment?

The purpose of the diffraction of electron experiment is to observe the wave-like behavior of electrons and gather data on their properties. This can help scientists better understand the nature of electrons and their interactions with matter.

What materials are needed for a diffraction of electron experiment?

To perform a diffraction of electron experiment, you will need a source of electrons (such as an electron gun), a thin material or a series of slits, a detector to measure the electrons' positions, and a power source to power the equipment.

What factors affect the observability of diffraction of electrons?

The observability of diffraction of electrons can be affected by several factors, such as the energy of the electrons, the spacing of the material or slits, and the distance between the material or slits and the detector. Higher energy electrons and smaller spacing generally lead to more observable diffraction patterns.

What are some potential applications of the diffraction of electron experiment?

The diffraction of electron experiment has numerous potential applications in fields such as materials science, solid state physics, and electron microscopy. It can also be used to study the properties of electrons in different materials and to understand the behavior of electrons in quantum systems.

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