Which of the following statements is/are true? I. Dim violet may excite electron than bright red II. Photoelectric effect is dependent on the intensity of light III. Excitation is dependent on the frequency of light IV. Energy is discrete and not continuous. A. I and II C. II and III B. I, II, and III D. I, III, and IV
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- 2. When light with a wavelength of 218 nm is incident on a certain metal surface, electrons are ejected with a maximum kinetic energy of 3.34 x 1019 J. Determine the wavelength of light that should be used to double the maximum kinetic energy of the electrons ejected from this surface. nmAccording to the theory of Photoelectric effect, the energy of a photon depends on its frequency. Which one will have highest energy of a photon? A. red light B. yellow light C. green light D. blue light E. all have the same energyCan you explain this to me? Needs Complete solution with 100 % accuracy.
- 5. A surface of copper (work function = 4.70 eV) is illuminated by light with a wavelength of 220 nm. What is the maximum kinetic energy of the emitted photoelectrons?3. Light of wavelength 500. nm is incident on a metallic surface. If the stopping potential for the photoelectric effect is 0.450 V, find (a) the maximum kinetic energy of the emitted electrons, (b) the work function, and (c) the cutoff wavelength. 11Question 14 a) A narrow beam of white light is passed through a clear glass vessel containing cool hydrogen gas at a low pressure. A prism is used to disperse the light leaving the vessel. This results in a white light spectrum, crossed by a series of dark lines. Explain the origin of these dark lines and name the type of spectrum that is produced. b) Some of the atomic energy levels of hydrogen are shown in the diagram below. i. ii. iii. Energy/eV 0 -0.85 -1.51 -3.39 -13.58 n = 4 n = 3 n = 2 n = 1 Determine the ionization energy of hydrogen and express this in joules. Determine the wavelength of the light emitted when an electron falls from the n = 3 level to the n = 1 energy level. A photon of energy 10.19 eV is in collision with a hydrogen atom. What would happen to this photon?
- 9. As the intensity of light increases in the photoelectric effect, the ejected electrona. has a greater velocity d. remains the sameb. loses kinetic energy e. none of the abovec. increases in numberA photon of light has a frequency of 5.00 x 1014 Hz. If the frequency of the photon was doubled then which of these would happen to the energy of this photon? a. it would become one-fourth as much b. it would become half as much c. it would double d. it would quadruple e. it would triple9. Considering the photoelectric effect; a) If a material has a cutoff wavelength of 780 nm what is the work function of the material? b) What is the maximum speed of liberated electrons when light with a wavelength of 410 nm is used to illuminate the material? c) If a liberated electron has 3.2349 eV of kinetic energy and it was a photon emitted from a hydrogen atom transition that liberated it, what energy level transition occurred? State both the initial and final energy level.