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…

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter3: The Quantum Theroy Of Light

Section: Chapter Questions

Problem 42P

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Similar questions

In the interpretation of the photoelectric effect, how is it known that an electron does not absorb more than one photon?
Which aspects of the photoelectric effect cannot be explained by classical physics?
Suppose that in the photoelectric-effect experiment we make a plot of the detected current versus the applied potential difference. What information do we obtain from such a plot? Can we determine from it the value of Planck’s constant? Can we determine the work function of the metal?
The work function of a photoelectric surface is 2.00 eV. What is the maximum speed of the photoelectrons emitted from this surface when a 450-nm light falls on it?
If the work function of a metal is 3.2 eV, what is the maximum wavelength that a photon can have to eject a photoelectron from this metal surface?
A 600-nm light falls on a photoelectric surface and electrons with the maximum kinetic energy of 0.17 eV are emitted. Determine (a) the work function and (b) the cutoff frequency of the surface. (c) What is the stopping potential when the surface is illuminated with light of wavelength 400 nm?
Estimate the binding energy of electrons in magnesium, given that the wavelength of 337 nm is the longest wavelength that a photon may have to eject a photoelectron from magnesium photoelectrode.
Q. 12: Photoelectric emission takes place (a). when incident wavelength is greater than threshold wavelength when incident wavelength is less than threshold wavelength (b) (c) (d) when incident frequency is greater than threshold frequency at any frequency
3.2. A photon of wavelength 350 nm and intensity 1.00 W/m² is directed at a potassium surface, with work function 2.2 eV. (a) Calculate the maximum kinetic energy of the emitted photoelectrons. (b) If 5% of the incident photons produce photoelectrons, how many are emitted per sec if the potassium surface has an area of 1 cm²? (c) Calculate the photoelectric current generated.
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.) What do you understand by photoelectric effect?(b.) Explain the meaning of the terms threshold frequency and work function used in connection with photoelectric effect.
3.2 Light with a wavelength of 2.00×10-7 m is directed at a metallic surface made of yttrium, which has a work function of 3.11 eV. With what speed will photoelectrons be produced, and what is the cut-off potential necessary to stop the photoelectrons?

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