Question

A certain metal has a work function of 2.6 eV. (a) What is the shortest wavelength...

A certain metal has a work function of 2.6 eV. (a) What is the shortest wavelength of the electromagnetic radiation that will eject electrons from this material? (b) If light of wavelength 420 nm is used, what will be the speed of the emitted electrons?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Light of wavelength 270 nm strikes a metal whose work function is 1.9 eV. What is...
Light of wavelength 270 nm strikes a metal whose work function is 1.9 eV. What is the shortest de Broglie wavelength for the electrons that are produced as photoelectrons?
Light of wavelength 300 nm strikes a metal whose work function is 2.0 eV. What is...
Light of wavelength 300 nm strikes a metal whose work function is 2.0 eV. What is the shortest de Broglie wavelength for the electrons that are produced as photoelectrons? Express your answer using two significant figures. λmin=    m
The work function for copper is 4.5 eV. (a) Find the threshold frequency and wavelength for...
The work function for copper is 4.5 eV. (a) Find the threshold frequency and wavelength for the photoelectric effect to occur when monochromatic electromagnetic radiation is incident on the surface of a sample of copper. Hz nm (b) Find the maximum kinetic energy of the electrons if the wavelength of the incident light is 190 nm. eV (c) Find the maximum kinetic energy of the electrons if the wavelength of the incident light is 240 nm. eV
The work function for gold is 5.01 eV. (a) Find the threshold frequency and wavelength for...
The work function for gold is 5.01 eV. (a) Find the threshold frequency and wavelength for the photoelectric effect to occur when monochromatic electromagnetic radiation is incident on the surface of a sample of gold. In Hz and nm (b) Find the maximum kinetic energy of the electrons if the wavelength of the incident light is 160 nm.in eV ( c) Find the maximum kinetic energy of the electrons if the wavelength of the incident light is 220 nm. In...
1. A) The element rubidium has a work function of 2.16 eV. What is the maximum...
1. A) The element rubidium has a work function of 2.16 eV. What is the maximum kinetic energy of electrons if the metal is illuminated by light of wavelength 198 nm? B) What is their speed? 2. What wavelength light would have to fall on the metal tungsten (work function 4.55 eV) if it is to emit electrons with a maximum speed of 1.02x106 m/s?
1. The work function of a certain metal is φ = 2.25 eV. Determine the minimum...
1. The work function of a certain metal is φ = 2.25 eV. Determine the minimum frequency of light f0 for which photoelectrons are emitted from the metal. (Planck's constant is: h = 4.1357×10-15 eVs.) Tries 0/99 2. Determine the corresponding wavelength of light. (Possibly useful constant: hc = 1240 eVnm.) Tries 0/99 3. Calculate the kinetic energy of the emitted electrons if the frequency of the photons is doubled to 2f0.
A. What is the energy in 10-3 eV of a photon that has a momentum of...
A. What is the energy in 10-3 eV of a photon that has a momentum of 6.13×10−29 kg ⋅ m/s ? B. What is the energy in 10-9 eV of a photon in a radio wave from an AM station that has a 1,506 kHz broadcast frequency? C. Calculate the frequency in 1020 Hz of a 0.571 MeV γ-ray photon. D. A certain molecule oscillates with a frequency of 1.73×1013 Hz. What is the approximate value of n for a...
A metal has a work function 2.78eV. Photons of a certain wavelength incident on this metal...
A metal has a work function 2.78eV. Photons of a certain wavelength incident on this metal produce electrons with a maximum kinetic energy 2.33eV. Determine the wavelength of the incident photons (in nm).
1)A magnesium surface has a work function of 2.65 eV. Electromagnetic waves with a wavelength of...
1)A magnesium surface has a work function of 2.65 eV. Electromagnetic waves with a wavelength of 280 nm strike the surface and eject electrons. Find the maximum kinetic energy of the ejected electrons. Express your answer in electron volts. Ans in  eV 2)What is the energy of each of the two photons produced in an electron-positron annihilation? Use the following Joules-to-electron-Volts conversion 1eV = 1.602 × 10-19 J. The rest mass of an electron is 9.11×10^-31 kg. Ans in MeV
A certain metal has a photoelectric work function value of 318.0 KJ/mol e^-. The metal is...
A certain metal has a photoelectric work function value of 318.0 KJ/mol e^-. The metal is irritated with light having a wavelength of 345.0 nm. What is the maximum possible velocity of electrons ejected from the surface
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT