What is the kinetic energy and the speed of an electronejected from a sodium surface whose work function isWo = 2.28 eV when illuminated by light of wavelength (a)410 nm (b) 550 nm?

Answered: Image /qna-images/answer/9a1fdf21-3776-47ed-9b8e-e60cdcf43548.jpg

Answered: What is the kinetic energy and the…

What is the kinetic energy and the speed of an ele ejected from a sodium surface whose work functic W. = 2.28 eV when illuminated by light of wavelengtl 410 nm (b) 550 nm?

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter6: Photons And Matter Waves

Section: Chapter Questions

Problem 71P: A 600-nm light falls on a photoelectric surface and electrons with the maximum kinetic energy of...

See similar textbooks

Related questions

Q: O Find the maximum frequency of X-rays produced by 30 kV electrons.

Q: A photon is headed away from the origin of an x,y coordinate system at angle o = 40° relative to the…

A: Given energy of the photon ,E= 13.6 eV . Also momentum of the photon is given by,P= E/C

Q: What minimum frequency of light is needed to ejectelectrons from a metal whose work function is 4.8…

A: work function, W = 4.8 x10-19 J

Q: If light of wavelength, 2 = 4000 A and intensity 100 W/m² incident on a metal plate of threshold…

Q: When UV light of wavelength 255 nm falls on a metalsurface, the maximum kinetic energy of emitted…

A: incident wavelength = 255 nm Kinetic energy = 1.4 eV

Q: What is the maximum velocity of electrons ejected from a material by 80-nm photons, if they are…

Q: Calculate the minimum - wavelength x - ray that can be produced when a target is struck by an…

A: Write the expression for minimum wavelength of the X ray .

Q: Let’s consider the DeBroglie principle for electron microscopy. In electron microscopy, the energy…

Q: Light of wavelength 200 nm shines on an aluminum surface; 4.20 eV is required to eject an…

Q: The work function of gold is 4.82 eV. Light with a wavelength of 1750 Å is dropped on gold. Using…

A: Given data The work function of gold is, ϕo=4.82 eV The wavelength is, λ=1750 A The maximum…

Q: certain metal has a work function 2.28 eV. What is the longest wavelength of light (in nm) that can…

Q: A physicist makes many measurements of the frequency of light emitted when a electron transitions…

A: Answer Given Uncertainty in frequency measurement ∆f = 17.4×106 Hz So the uncertainty in energy…

Q: A proton with total energy 5.52 keV, and initial de Broglie wavelength λi travels from a region with…

A: Energy (E)=hc/lamda Lamda=h/√2mev

Q: What voltage is needed to produce electron wavelengthsof 0.26 nm? (Assume that the electrons are…

A: The de Broglie wavelength λ of the electron is given by the following equation. Here, h is the…

Q: A proton is trapped in a one-dimensional box of length L. If the zero-point energy is to be 71.0 eV,…

Q: A CO2 laser produces a cylindrical beam of light with a diameter of 0.850 cm. The energy is pulsed,…

A: Given data: Diameter of cylindrical beam (d) = 0.850 cm Time (t) = 2.00 Ns = 2.00 × 10-9 s Total…

Q: A metal has a work function φ = 3.68eV. What is the maximum wavelength with which the photoelectric…

A: Introduction: The work function is the minimum amount of energy required to eject the electron from…

Q: What is the maximum kinetic energy of electrons knocked out of a thin copper foil by Compton…

Q: In the Compton scattering, the photon of energy 8.7 MeV is scattered free electron of mass 9.1 x…

A: GivenInitial energy of photon (E)=8.7 MeV=1.394×10-12 Jmass of free electron (m)=9.1×10-31…

Q: A photon collides with a stationary electron and makes an angle 60o after the collision. The final…

Q: An ultrashort pulse has a duration of 8.00 fs and produces light at a wavelength of 557 nm. What are…

A: We know the uncertainty relation between position and momentum given by ∆E.∆t >_ h/4π For minimum…

Q: An electron moves through a region of uniform electric potential of -200 V with a (total) energy of…

A: Since there are multiple sub parts posted, we will answer the first three sub parts. a) The equation…

Q: A beam of red light has wavelength of 700 nm. How much energy does a photon of red light have in (a)…

A: Given data The wavelength of the beam of red light is given as λ=700 nm. a) Now, the energy of…

Q: It is stated without proof with respect to Bragg’s law that when the atoms are not sym- metrically…

A: Write the equation of Bragg’s law. Draw the schematic diagram of the system.

Q: When light of wavelength 440 nm strikes a metallic surface, electrons are released from the surface…

Q: Aljaniis trying to experimentally measure Planek's constant h. He does this by shining different…

Q: If the visible light of 400 nm to 700 nm wavelength is shone on Cesium of work function is 2.3 eV.…

Q: n theory supported by the fact that light below a certain frequency when striking a metal plate,…

A: Light below a certain frequency no matter how intense is unable to eject electrons from a surface.…

Q: A metal has a work function of 4.14 eV. (a). Find the cutoff frequency for the photoelectric effect.…

Q: What is the maximum wavelength of light, in nm, that is capable of knocking electrons off a platinum…

Q: A certain atom has an energy level 3.60 eV above the ground state. When excited to this state, atom…

A: Using Heisenberg's uncertainty relation, ∆E∆t≥ℏ

Q: If an electron’s position can be measured to a precisionof 2.4 x 10-8 m how precisely can its speed…

Q: An electron is bound in a square well of width 1.50 nm and depth U0 = 6E1-IDW. If the electron is…

A: The ground state energy of a finite square well is given by E1=0.625E1-1DW Here, E1-1DW=h28mL2 Here,…

Q: A 0.001 60 - nm photon scatters from a free electron. For what (photon) scattering angle does the…

A: If the scattered photon has energy equal to the kinetic energy of the recoiling electron, the energy…

Q: At low temperatures, nearly all the atoms in hydrogen gaswill be in the ground state. What minimum…

A: At low temperatures, the atoms in hydrogen gas are in ground state. To observe photoelectric…

Q: Consider the wave function for the free particle, as shown. At what value of x is the particle most…

Q: The Pfund series of lines in the hydrogen spectrum occurs at wavelengths of from 2.279 µm to 4051 um…

Q: The cutoff wavelength for the photoelectric effect in a certain metal is 254 nm. (a) What is the…

A: The solution of question number 1,is

Q: Light with a wavelength of 400 nm strikes the surface of cesium in aphotocell, andthe maximum…

Q: A 0.00220-nm photon scatters from a free electron. For what (photon) scattering angle does the…

Q: A special kind of lightbulb emits monochromatic light of wavelength 630 nm. Electrical energy is…

Q: The threshold wavelength for emission of electronsfrom a given surface is 340 nm. What will be the…

A: Threshold wavelength of emission: λo = 340 nm = 340 x 10-9 m Wavelength 1: λ1 = 280 nm = 280 x 10-9…

Concept explainers

Compton effect

The incoming photons' energy must be in the range of an X-ray frequency to generate the Compton effect. The electron does not lose enough energy that reduces the wavelength of scattered photons towards the visible spectrum. As a result, with visible lights, the Compton effect is missing.

Recoil Velocity

The amount of backward thrust or force experienced by a person when he/she shoots a gun in the forward direction is called recoil velocity. This phenomenon always follows the law of conservation of linear momentum.

Question

What is the kinetic energy and the speed of an electron
ejected from a sodium surface whose work function is
Wo = 2.28 eV when illuminated by light of wavelength (a)
410 nm (b) 550 nm?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

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?
The work function for potassium is 2.26 eV. What is the cutoff frequency when this metal is used as photoelectrode? What is the stopping potential when for the emitted electrons when this photo electrode is exposed to radiation of frequency 1200 THz?
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?
What is the wavelength of (a) a 12-keV X-ray photon; (b) a 2.O-MeV y -ray photon?
At what velocity will an electron have a wavelength of 1.00 m?
Barium has a work function of 2.48 eV. What is themaximum kinetic energy of electrons if the metal is illuminated by UV light of wavelength 365 nm? What is their speed?
The work function of each Lithium and Beryllium and Mercury is 2.3eV,3.9eV,4.5eV. If light with λ=400nm drop on thes metals. A) the Photoelectric effect will appear in which metal? B) the maximum point of kinetic energy of photonic electrons in each state.
Barium has a work function of 2.48 eV. What is the maximum kinetic energy of electrons if the metal is illuminated by UV light of wavelength 375 nm? What is their speed?
A beam of UV light with a wavelength of 197 nm falls onto a metal cathode. The stopping potential necessary to stop any electrons from reaching the anode is 2.08 V. What is the work function (W) of the cathode surface measured in eV?
A strip of gold with a work function of 5.1eV is illuminated by a 1.57 μm green light. Calculate the maximum kinetic energy, KE. Give your answer in electronvolts and joules.
A sheet of metal is illuminated by photons with a wavelength of 325 nm and the emitted electrons are found to have a maximum kinetic energy of 1.25 eV. If the same metal is illuminated by 225 nm light, what will be the maximum speed of emitted electrons? Give your answer in km/s to 3 significant digits.
When ultraviolet light with a wavelength of 400.0 nm falls on a certain metalsurface,the maximum kinetic energy of the emitted electrons is measured to be1.10 eV.What is the maximum kinetic energy of the electrons in Joules when lightof wavelength 300.0 nm falls on the surface?