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What is the De Broglie wavelength of an electron that strikes the back of the face of a TV screen at 19 the speed of light?
Assuming you mean that the velocity is 1/9th the speed of light then you need to use the de Broglie equation for the wavelength of a particle, which says that the wavelength is equal to Planck's constant divided by the momentum. Thus,
λ = h / p = h / (m*v) = h/(m*1/9*c) = 9*h/(m*c)
where λ=wavelength, h=Planck's constant, p=momentum, m=mass of the electron, v=velocity, and c=speed of light
this gives
λ = 9 * 6.626*10^-34 / (9.109*10^-31 * 3.00*10^8)
= 2.18*10^-11 meters
What else can I help you with?
How do cathode ray tubes work?
The cathode ray tube (CRT) is an evacuated glass envelope containing an electron gun (a source of electrons) and a fluorescent screen, usually with internal or external means to accelerate and deflect the electrons. When electrons strike the fluorescent screen, light is emitted. Source: Copied from Wikipedia
What is the relationship between the ratio of the distance between two slits and the screen (d) to the wavelength of light () in the interference diffraction phenomenon?
In the interference diffraction phenomenon, the relationship between the ratio of the distance between two slits and the screen (d) to the wavelength of light () determines the pattern of interference fringes observed on the screen. This relationship affects the spacing and intensity of the fringes, with smaller ratios leading to wider spacing and more distinct fringes.
What is the combined energy of electrons striking on the screen of cathode ray oscilliscope in 1 second?
The combined energy of electrons striking on the screen of a cathode ray oscilloscope in 1 second can be calculated by multiplying the number of electrons hitting the screen per second by the energy carried by each electron. This calculation would take into account the charge of the electron, the accelerating voltage used in the oscilloscope, and the number of electrons emitted per second by the electron gun inside the oscilloscope.
How does lightpen work?
A light pen operates by detecting the light emitted from a computer screen when activated by a user pressing the pen against the screen. The screen emits electron beams that are picked up by the light pen, allowing the computer to determine the location on the screen that the pen is pointing at.
A cathode ray tube is an electromagnetic device that is used almost daily in life. It is made of an electron gun which has a heated filament and a supply of electrons. It also has two pairs of deflect?
A cathode ray tube uses an electron gun to produce a beam of electrons, which is then deflected by electromagnetic fields to create images on a screen. The electron beam is accelerated toward the screen, causing it to light up and produce the image we see. The deflection of the beam determines the position of each point on the screen, allowing for the creation of images and text.
If one electron is passing through a hole whose size is of the order of the wavelength of an electron then will you get diffraction pattern?
One electron? No.Many electrons, one at a time? Yes.Assuming that the electrons travel through the hole and then are "detected" by some sort of a screen, each electron will be detected at precisely one point (that is to say, it will interact with one atom in the detector.) For any given electron, the choice of which atom in the detector is, as far as we know, random (that is to say, unknowable.)Send enough electrons through the apparatus though, and the probability density of the "random" function will become apparent. That probability density, which is predicted by the wave equations, is your "diffraction pattern."
Why are electron microscopes capable of revealing details much smaller that those seem through light microscope?
The resolving power of a microscope is a linear function of the wavelength - An optical microscope's wavelength is that of light, and the electron microscope's - that of vibrating electrons. As the electron microscope's wavelength is about 100,000 times smaller than that of light, we get a much better resolving power.
What does the electron gun do in a crt monitor?
electron gun just fires electrons with certain energy so that when the electrons strikes on the pixels of the screen then they glow up with certain color... this color is defined according to the energy of electron..i.e electrons with high energy will lit up blue &with low energy lit up red color. energy=frequency*plank's constant(n)...
What is waveform on the LCD screen?
The waveform on an LCD screen is the wavelength at which the images are being transmitted. The higher the waveform, the better the image quality.
What produces the light to make images on the television or computer screen?
electron beams
Functions of x and y plates in cro?
deflect the electron beam on its way to the fluorescent display screen, creating waveforms on the screen
What is the formula for fringe width?
Fringe width (for dark and bright bands): D * wavelength / d where, D = distance between screen and coherent sources (metres), wavelength = wavelength of light used is experiment (nanometres), d = distance between the 2 coherent sources (millimetres).
How many times does an electron beam line move across a black and white tv screen?
An electron beam in a black and white TV screen moves horizontally across the screen 15,750 times per second during the process of displaying an image. This back-and-forth movement creates the illusion of a continuous image.
How do cathode ray tubes work?
The cathode ray tube (CRT) is an evacuated glass envelope containing an electron gun (a source of electrons) and a fluorescent screen, usually with internal or external means to accelerate and deflect the electrons. When electrons strike the fluorescent screen, light is emitted. Source: Copied from Wikipedia
What is the relationship between the ratio of the distance between two slits and the screen (d) to the wavelength of light () in the interference diffraction phenomenon?
In the interference diffraction phenomenon, the relationship between the ratio of the distance between two slits and the screen (d) to the wavelength of light () determines the pattern of interference fringes observed on the screen. This relationship affects the spacing and intensity of the fringes, with smaller ratios leading to wider spacing and more distinct fringes.
What would be the combined energy of all electron striking the screen of a cathod ray oscilloscope in one second?
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What is the combined energy of electrons striking on the screen of cathode ray oscilliscope in 1 second?
The combined energy of electrons striking on the screen of a cathode ray oscilloscope in 1 second can be calculated by multiplying the number of electrons hitting the screen per second by the energy carried by each electron. This calculation would take into account the charge of the electron, the accelerating voltage used in the oscilloscope, and the number of electrons emitted per second by the electron gun inside the oscilloscope.
