A photon with frequency 9.996 x 10^14 Hz strikes a slab of lead and is absorbed without freeing an electron.
a) If the frequency of that photon is the threshold frequency for lead, calculate the work function for lead. Express your answer in eV.
b) Assume a photon of wavelength 200 nm strikes the lead, freeing an electron. Calculate the maximum kinetic energy (in Joules) of the liberated electron.
c) Calculate the de Broglie wavelength of the emitted electron. You will need to begin with the kinetic energy to determine the speed of the electron, which is not relativistic.
d) Assume the process described above occurs repeatedly, in rapid succession, and that the emitted electrons strike a double slit with a slit separation of 0.300 um. The slits are 0.5 mm from the detection screen. Calculate the distance to the first and second interference maxima.
e) Calculate the first maximum (m=1) for the light of wavelength 200 nm. How does this value compare to (m=1) for the electron?
A photon with frequency 9.996 x 10^14 Hz strikes a slab of lead and is absorbed...
An X-ray photon with a wavelength of 0.960 nm strikes a surface. The emitted electron has a kinetic energy of 937 eV. What is the binding energy of the electron in kJ/mol? [Note that KE = 12mv2 and 1 electron volt (eV) = 1.602×10−19J.]
An X-ray photon with a wavelength of 0.933 nm strikes a surface. The emitted electron has a kinetic energy of 994 eV . What is the binding energy of the electron in kJ/mol? [Note that KE = 1/2mv^2 and 1 electron volt (eV) = 1.602×10^−19J.]
Constants I Periodic Table An X-ray photon with a wavelength of 0.940 nm strikes a surface. The emitted electron has a kinetic energy of 968 eV You may want to reference (Pages 296-324) Chapter 7 while completing this problem.
3. A photon with a frequency of 5.00 E14 Hz strikes a metal surface whose work function is 1.62 eV. Calculate the a) energy of the incoming photon, the b) maximum kinetic energy of the ejected photoelectron, and the c) threshold frequency (3 points). alculate the many energy of the incoming photom
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...
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1. A uniform light beam with frequency 3.0 × 1015 Hz and intensity 1.0 × 10-1 Wm-2 falls on a metal surface. The photoelectric work function of this metal is 2.0 eV. (a) (9 points) What is the maximal kinetic energy of an emitted electron? (b) (8 points) What is the maximal momentum of an emitted electron? (c) (8 points) What is the minimal de Broglie wavelength of an emitted electron
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1.(16 pts) (1) In a photoelectric experiment, Molybdenum must absorb radiation having a frequency of 1.09 x 1015 1/s before it can eject an electron from the surface of the metal. Calculate the work function of Molydenum in Joules. (ii) What is the wavelength, in nm, of the photon associated with the work function? (iii) If molybdenum is irradiated with light of wavelength 120 nm, what is the maximum kinetic energy, in Joules, of the electron emitted? Recall the Einstein...