I need help with this problem Problem 3: Photoelectric effect (10 pts) hat in the spend Problem 3: Photoelectric effect (10 pts) hat in the spend
Thanks!
5. (10 pts) (a) Einstein's explanation of the photoelectric effect launched the study of quantum mechanics. A minimum frequency of UV light shining on a metal is necessary to create a current. Explain in your own words, how Einstein explained this particular observation. Be to the point. Points will be deducted for answers that do not have enough detail, or if there is irrelevant information. (b) You discover a new metal. You conduct a photoelectric experiment on the metal...
i started this problem but i need help!
Acid catalyzed hydrolysis (12 pts)
3. What is photoelectric effect? Explain details threshold frequency, and stopping potentials? Sketch the diagram and necessary formula? Problem-3: What is the threshold wavelength of electron generated by 200 V?
a and c
following questions concerning this experime fem 3 Consider the photoelectric effect experiment she men shown below. Answer the ev ( I n coming this experiment. The metal plate has a workfunction of Vacuum tube Photon Electron Metal Plate of a current to be measured by the ammeter. E D . i.) Briefly explain why this is the case, ii) Given that this is true would a photon of wavelength 1300 nm cause a current to be measured)...
6.)If I have a metal that has a minimum energy required to cause the photoelectric effect of 5.98 X 10^-19 J., what kind of radiation works for me to cause the photoelectrons to come out, based on the wavelength range of the different sources? of radiation in nm? *
1.(16 pts) (i) In a photoelectric experiment, Molybdenum must absorb radiation having a frequency of 1.09 x105 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 equation...
The minimum energy required to cause the photoelectric effect in potassium metal is 3.69×10−19J. You may want to reference (Page) Section 8.1 while completing this problem. If 500 nm radiation is shone on potassium, what is the velocity of the ejected electrons? Express your answer with the appropriate units.
(b) (12 pts) We conduct a photoelectric effect experiment where the electrons are ejected from a metallic surface with speeds of up to vo when light with a wavelength Xo is used. Suppose we now use light with a wavelength 70/2. What will be the maximum speed of the electrons ejected from the metallic surface?
3. For the photoelectric effect, draw the plot for the energy of an emitted electron versus the frequency of the incident light. Explain your diagram. Using the concept of quantized energy, what would you expect to be the effect on the number and energy of the emitted electrons with; a. increasing the intensity of the incident light. b. increasing the frequency of incident light
The minimum frequency for the photoelectric effect to occur in a given metal is 5x 10^14 Hz. a) Determine the metal's work function b) If light of frequency 7.5x10^14 Hz is shined on the metal, determine the speed of the most active electron released.