3.7., Which of the following statements is true for photoelectric effect?(a) Photoelectric current is proportional to the frequency of the radiation used, for all retardingvoltages.(b) Photoelectric current is proportional to the intensity of light used for all retarding voltages.(c) Photoelectric current is proportional to the wavelength of radiation used, for all retardingvoltages.(d) Photoelectric current is proportional to energy of the radiation used for all retardingvoltages.

Option a: Photoelectric current is proportional to the frequency of the radiation used, for all…

Answered: 3.7., Which of the following statements…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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3:42 .ull 5G Done 2 of 2 John Isner holds the ATP's (Association of Tennis Professionals) official record for the fastest serve at 253 km/h. Calculate the de Broglie wavelength of a tennis ball with the standard weight of 54.6 grams. Give your answer in 1034 m (for example, if your answer is 5.6x1034 m, then enter 5.6). This should give you a good idea of why one cannot expect to observe interference affects using tennis balls rather then, for example, electrons. +)
Light of wavelength 350 nm falls on a potassium surface, and the photoelectrons have amaximum kinetic energy of 1.3 eV.What is the work function of potassium?The speed of light is 3 × 108 m/s and Planck’sconstant is 6.63 × 10−34 J · s.Answer in units of eV. What is the threshold frequency for potassium?Answer in units of Hz.
Radiation of frequency 8 x 10" Hz is incident on a metal. The maximum Kinetic energy of photoelectrons emitted is 1.5 × 10 ¹9 J. Find the maximum Kinetic energy of photoelectrons emitted when radiation of wavelength 4500 A is incident on the metal and corresponding stopping potential. (Charge on electron = 1.6 × 10-19 C).
If a photon of wavelength 0.0665 nm hits a free electron and is scattered at an angle of 35◦ from its original direction, findat. the change in wavelength of this photon,b. the wavelength of the scattered photon,vs. the change in energy of the photon (is it a loss or a gain?), and d. the energy gained by the electron.
Explain why photoelectrons emitted in the photoelectric effect have a maximum kinetic energy. Show how this relates to the energy of the incident photons.
In a photoelectric effect experiment using UV light of wavelength 100 nm, a stopping voltage of V = 7.68 V is found. (a) Find the work function of the metal used. Using an appropriate table of work functions (in your text, for example), identify the metal. (b) Will there be a photoelectric effect using light of wavelength 200 nm? If so, find the stopping voltage. (c) Will there be a photoelectric effect using light of wavelength 400 nm? If so, find the stopping voltage.
When ultraviolet light with a wavelength of 254 nm falls on a clean copper surface, the stopping potential necessary to stop emission of photoelectrons is 0.181 V. (a) What is the photoelectric threshold wavelength for this copper surface? (b) What is the work function for this surface, and how does your calculated value compare with that given in Table
A metal surface is illuminated with light of different wavelengths and the corresponding stopping potentials of the photoelectrons are shown in the Table below. A (A) 5581 61566731 V (V)1,05 0,86 0,67 Using the Table, determine the photoelectric threshold wavelength (in Å).
If the photoelectric work function of a metal is 5 eV, calculate the threshold frequency for the metal. Given : Planck's constant 6.6 x 10-* Js. 1 eV = 1.6 x 10- 19 V.
Suppose a company wanted to develop an electricity-generating device based on the Earth as a blackbody. This temperature of 35°C at night. What would be the work function of a metal that could produce photoelectrons from the peak wavelength of the Earth's blackbody radiation at this temperature? What would be the kinetic company chose to base its operations in Death Valley, California, whose summers see a surface energy of a photoelectron produced by light half this wavelength?

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