1. Titanium metal requires a photon with a minimum energy of 6.94 x 10- J to...
The electron binding energy for copper metal is 7.18 times 10^-19 J. Find the longest wavelength of light that could eject electrons from copper in a photoelectric effect experiment. E = 2.998 times 10^8 m/s h = 6.626 times 10^-34 Js nm
In the photoelectric effect experiment, a beam of light is shining on a metal surface and the electrons are emitted from the metal. One of the three key findings is that a minimum frequency of light is required for emission of electrons. This minimum frequency is found to be 5.5 × 1014 s-1 for an unknown metal. 4 Briefly describe the other two findings and draw a plot fo the KE of emitted electrons against light frequency. (a) (6 marks)...
Consider a photoelectric effect experiment. Calculate the minimum photon energy needed to produce photoelectrons for the following metals: Sodium Aluminum Platinum For the photon energies you calculated in problem #1, calculate the wavelength and frequency for each. In what part of the electromagnetic spectrum do these photons belong? Calculate the radii and energies of the first three allowed orbits for the Bohr Model of the hydrogen atom in both joules and electron-volts. Show your work. Calculate the energies of photons...
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
It requires a photon with a minimum energy of 4.41 ✕ 10-19 J to emit electrons from sodium metal. (d) What is the maximum number of electrons that can be freed by a burst of light (λ = 389 nm) whose total energy is 1.20 µJ? (answer is not 2.72x10^12 or 2.721x10^12
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 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 frequency, v0. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.09 Times 10^14 s ^-1. With what maximum kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of lambda = 225 nm? KEelectron = .
A metal surface has a minimum binding energy of 2.34x10-19 J/electron. An incident light of 345 nm wavelength was directed onto the metal. Answer the following questions: a. What is the frequency of the incident light? b. How much energy per photon is projected onto the metal surface? c. How much energy per mole is projected onto the metal surface? d. What is the kinetic energy given to one electron that is released from the metal from the photoelectric effect?...
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...