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The function of a photoelectric material is the energy that a photon of light must possess to just expel an electron from the surface of a material. The work function of cesium is 3.42 x 10^-19 Joules.Ê

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6mo ago

The threshold frequency of cesium is the minimum frequency of light required to eject electrons from the metal surface through the photoelectric effect. For cesium, the threshold frequency is approximately 3.5 x 10^14 Hz. Any light with a frequency higher than this value will be able to cause the photoelectric effect in cesium.

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Q: What is the thresh hold frequency of cesium?
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What is the threshold frequency of cesium?

The threshold frequency of cesium is approximately 3.3 x 10^14 Hz. This is the minimum frequency of electromagnetic radiation required to eject electrons from the surface of cesium via the photoelectric effect.


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The frequency of one type radiation emited by cesium-133?

Cesium 133 is the stable isotope of the family of cesium isotopes and thus has no nuclear radiation breaking out of its nucleus. The only radiation from cesium 133 would be an emission spectra data in the blue visible light zone with a few less intense lines across the visible spectrum.


What do cesium atoms quartz crystals and pendulums have in common?

They all exhibit properties related to vibrations and oscillations. Cesium atoms vibrate at specific frequencies, quartz crystals resonate at a precise frequency when subjected to an electric current (piezoelectric effect), and pendulums oscillate back and forth in a predictable manner.


What is code p0421?

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What unit is detarmined by the frequency of the radiation given off by celsium-133?

The unit determined by the frequency of radiation given off by cesium-133 is the hertz (Hz). Cesium-133 is used in atomic clocks as a reference for timekeeping due to its precise frequency of 9,192,631,770 cycles per second.


What element is used to make very accurate atomic clocks?

Cesium is used to make very accurate atomic clocks. The oscillation frequency of radiation emitted by cesium-133 atoms is used to define the second in the International System of Units (SI).


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What will happen if monochromatic light is shining on the alkali metal and the cesium is just above the threshold frequency?

If monochromatic light is shining on an alkali metal and cesium is just above the threshold frequency, electrons in the cesium atoms will be ejected in a process called the photoelectric effect. These ejected electrons will have kinetic energy equal to the difference between the energy of the incident photon and the work function of the metal. The photoelectrons will be emitted instantaneously.


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