# What Is The Longest Wavelength Of Light That Can Eject Electrons From This Metal?

What is the longest wavelength of light that can eject electrons from this metal? The longest wavelength of light that will cause an electron to be emitted from a metal is 520 nm.

One may also ask, What is the maximum wavelength to eject electrons?

Question: The maximum wavelength for which an electromagnetic wave can eject electrons from a platinum surface is 196 nm.

Nevertheless, What is the longest wavelength of EM radiation that can eject an electron from silver? So that's 262 nanometers would be this longest possible wavelength that would still eject a photoelectron from silver and this is shorter than the lower limit of the visible range which is about 380 nanometers so this is ultraviolet light.

Additionally, What is the longest wavelength of energy capable of ejecting an electron from potassium?

This works out to 554 nanometers; that is the maximum wavelength that will eject an electron from a potassium molecule, or atom, I should say.

What is the maximum wavelength required to remove an electron from an unidentified metal?

The maximum wavelength of light that can remove an electron from a lithium atom is equal to 4.279⋅10−7m . So, you know that the work function of lithium, which is the energy needed to remove an electron from an atom located at the surface of the metal, is equal to 279.7 kJ/mol.

## Related Question for What Is The Longest Wavelength Of Light That Can Eject Electrons From This Metal?

What is the maximum wavelength of electromagnetic radiation that can eject photoelectrons from the metal?

What is the maximum kinetic energy of the ejected photoelectrons? Violet light of wavelength 400 nm ejects electrons with a maximum kinetic energy of 0.860 eV from sodium metal.

How do you find the maximum wavelength?

See formula wavelength = speed of wave / frequency. How do I work out the maximum wavelength? To determine the maximum wavelength of light, you simply use the energy equation. If you know the amount of energy required for the reaction, you plug it into the equation λ = hc/E.

What is the maximum wavelength of light?

The maximum wavelength of light for photoelectric effect from a metal is 200 nm. The maximum kinetic energy of electron which is emitted by the radiation of wave length 100 nm will be: (1) 12.

What is the maximum wavelength in nm at which the electron can be removed from cesium?

1. Cesium metal has a work function of 2.10 eV. Determine the maximum wavelength of light required to produce emission of photoelectrons. The maximum wavelength that would produce photoelectrons is 592 nm.

What is the longest wavelength of radiation that can eject a photoelectron from potassium given the work function of potassium 2.24 EV is it in the visible range?

5.546×10−7m.

How do you find the longest wavelength of light?

What is the longest wavelength of light that will cause electrons to be emitted from this cathode?

3. The longest-wavelength light that causes an electron to be emitted from gaseous lithium atom is 520 nm.

Which colored light has the longest wavelength?

Visible light may be a tiny part of the electromagnetic spectrum, but there are still many variations of wavelengths. We see these variations as colors. On one end of the spectrum is red light, with the longest wavelength. Blue or violet light has the shortest wavelength.

What is the maximum wavelength of light that can eject photoelectrons from cesium?

The critical (maximum) wavelength for the photoelectric effect in cesium is 660 nm, when the potential difference is 2V.

How do you calculate the wavelength needed to remove an electron?

What is the lowest frequency of light that is required to remove an electron from a sample of titanium Ti metal if the binding energy of titanium is 3.14 103 KJ mol?

The shortest frequency of light required to remove an electron from a sample of metal is 7.87x1015 Hz.

What is the maximum wavelength of light that will cause photoelectrons to be emitted from sodium?

Answer: When electromagnetic radiation of wavelength 300 nm falls on the surface of sodium, electrons are emitted with kinetic energy of 1.68×105Jml-1.

How do you find the maximum kinetic energy?

The maximum kinetic energy of a photoelectron is given by 𝐸 = ℎ 𝑓 − 𝑊 , m a x where ℎ is the Planck constant, 𝑓 is the frequency of the incident photon, and 𝑊 is the work function of the metal surface.

What wavelength in nm can strike a metal surface and eject an electron at 1.89 10/19 J if the binding energy of the metal is 289 KJ mol?

E is given in the question i.e. 1.89*10^-19 J. Thus, putting the values in formula, the wavelength will be 1.052 * 10^-6 m. Since 1m = 10^9 nm. Thus, wavelength required will be 1052 nm.

Is there a wavelength limit?

The limit for long wavelengths is the size of the universe itself, while it is thought that the short wavelength limit is in the vicinity of the Planck length.

How do you find the maximum absorbance wavelength?

to get maximum absorption is to reach the absorbance value is 2. equation A = 2-log%T. if your compound get higher absorbance than dilute it as such than you can get the maximum absorbance 2.

What is the maximum wavelength report in nm of light that can eject an electron?

The maximum wavelength that an electromagnetic wave can have and still eject electrons from a metal surface is 485 nm.

What is the maximum wavelength of a wave?

Radio waves have the longest wavelength, and gamma rays have the shortest wavelength.

What is the wavelength of maximum absorbance?

The absorption is highest at around 510 nm (the wavelength at which absorption reaches its peak is called absorption maximum wavelength).

Which electromagnetic waves has maximum wavelength?

What is the maximum wavelength of light that can cause this reaction?

An important reaction in the formation of photochemical smog is the photodissociation of NO2: NO2 + hv >>> NO(g) + O(g) The maximum wavelength of light that can cause this reaction is 420 nm.

What is the maximum wavelength of light required to remove an electron from iron?

The maximum wavelength is 2.76x10-7 m.

What is the maximum wavelength of a photon in NM capable of removing a single electron from the surface of solid rubidium metal?

The maximum wavelength of light capable of doing this is λ = 574.4 nm.

What happens to the wavelength of a photon after it collides with an electron?

When a photon collides with an electron then the effect of it is called Compton scattering where the photons interact with the electron, losing momentum and therefore increase in wavelength.

What is the energy of a photon of red light that has a wavelength of 675 nm?

1 mol of a photon has 6.022x1023 photons. The answer is option A), In 3.00 moles of photons with a wavelength of 675 nm, the energy is 532 kJ.

What is the energy of a photon that has a wavelength of 400 nm?

From the previous problem, the energy of a single 400 nm photon is 3.1 eV. One must therefore reduce the effective work function to 3.1 eV to allow the light to liberate an electron.