The work function of a metal is known to be 5.86×10-19 J. Calculate the minimum frequency...
The work function of a metal is known to be
5.86×10-19 J. Calculate the minimum frequency of light
required to release electrons from the metal.
8.84×1014 s^-1
For the metal above calculate the velocity (in m m–1) of the ejected electrons if light with a frequency of 2.00×1015 s–1 is used to irradiate the metal surface.
Homework Answers
Photo electric effect equation is based upon energy conservation law.
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The work function of a metal is known to be
5.86×10-19 J. Calculate the minimum frequency...
1. Calculate the Work Function of a metal that has a threshold frequency of 9.54 x...
1. Calculate the Work Function of a metal that has a threshold frequency of 9.54 x 1014 s-1. answer: 63.3*10^(-20)J 2. What is the wavelength of this light in nm? answer: 314nm 3. What would be the Kinetic Energy of an ejected photoelectron if 3.26 x 1015 s-1 light struck (hit) that same metal? answer: 1.53*10^(-18)J 4. What would be the velocity and De Broglie Wavelength of ejected photoelectron? answer: 1.83*10^(6)m/s 5.What is the wavelength of light (in nm) of...
hf = + (1/2) mv2 and hf = + eVs work fucntion...
hf = + (1/2) mv2 and hf = + eVs work fucntion e = 1.60 x 10-19 C, h = 6.63 x 10-34 J s, m- mass of electron = 9.11 x 10-31 kg 1. The work function for lithium is 4.6 x 10-19 J. (a) Calculate the lowest frequency of light that will cause photoelectric emission. (b) What is the maximum energy of the electrons emitted when a light of 7.3 x 1014 Hz is...
When light of frequency 1.30x 1015 s-1 shines on the surface of cesium metal, electrons are...
When light of frequency 1.30x 1015 s-1 shines on the surface of cesium metal, electrons are ejected with a maximum kinetic energy of 5.2x 10-19 J.Calculate the wavelength of this light in nm
Beryllium has a work function of 5.0 eV. Calculate the minimum frequency of light that would...
Beryllium has a work function of 5.0 eV. Calculate the minimum frequency of light that would eject electrons in the photoelectric effect experiment. If light of frequency 8*1015 Hz was used, what would be the maximum kinetic energy of the ejected electrons? ????max = hf - Wo I know how to calculate the maximum kinetic energy for this question using the formula above but what formula would be used to calculate the minimum frequency needed to eject the electrons? I...
The minimum frequency of light needed to eject electrons from a metal is called the threshold...
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, Vo. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.79 x 1014 -! Eo 25.11 x10-20 J With what maximum kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of 245 nm? 56.025 x10-19 -electron Incorrect
The minimum frequency of light needed to eject electrons from a metal is called the threshold...
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, ν0. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.32 × 1014 s–1. With what maximum kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of λ = 265 nm?
The minimum frequency of light needed to eject electrons from a metal is called the threshold...
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, ν0. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.41 × 1014 s–1. With what maximum kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of λ = 265 nm?
The minimum frequency of light needed to eject electrons from a metal is called the threshold...
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, vo Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.06 x 1014 s-1 Number avelength With what kinetic energy will electrons be ejected when this metal is exposed to light with a w of A- 225 nm? Number KEelectron
A photon hits a metal surface with known work function φ. Due to the photo-electric effect,...
A photon hits a metal surface with known work function φ. Due to the photo-electric effect, an electron with mass me is ejected from the metal surface. The ejected electron has a wavelength e. Further, you may assume Planck's constant h and the velocity of light c to be known Express the wavelength of the photon ,h in terms of the quantities specified above. [10 pts]
The minimum frequency of electromagnetic radiation capable of removing an electron from the surface of a...
The minimum frequency of electromagnetic radiation capable of
removing an electron from the surface of a certain metal is
7.42x10+14 s-1. Use this information to
determine the work function for the metal in kJ per mole of
electrons ejected.
The minimum frequency of electromagnetic radiation capable of removing an electron from the surface of a certain metal is 7.42x10's. Use this information to determine the work function for the metal in kj per mole of electrons ejected. kJ/mole Check
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, Vo. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.79 x 1014 -! Eo 25.11 x10-20 J With what maximum kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of 245 nm? 56.025 x10-19 -electron Incorrect
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, vo Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.06 x 1014 s-1 Number avelength With what kinetic energy will electrons be ejected when this metal is exposed to light with a w of A- 225 nm? Number KEelectron
A photon hits a metal surface with known work function φ. Due to the photo-electric effect, an electron with mass me is ejected from the metal surface. The ejected electron has a wavelength e. Further, you may assume Planck's constant h and the velocity of light c to be known Express the wavelength of the photon ,h in terms of the quantities specified above. [10 pts]
The minimum frequency of electromagnetic radiation capable of
removing an electron from the surface of a certain metal is
7.42x10+14 s-1. Use this information to
determine the work function for the metal in kJ per mole of
electrons ejected.
The minimum frequency of electromagnetic radiation capable of removing an electron from the surface of a certain metal is 7.42x10's. Use this information to determine the work function for the metal in kj per mole of electrons ejected. kJ/mole Check
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