Sodium has a work function of 2.28 eV. If a sodium bar is illuminated with blue...
Sodium has a work function of 2.28 eV. If a sodium bar is illuminated with blue light (450 nm) -
(a) find the max KE (in eV) of a single photoelectron
(b) find the cutoff wavelength and color of a
photoelectron. (hint: to find the cutoff wavelength, you should
find the max wavelength of the photon.)
Homework Answers
Add Answer to:
Sodium has a work function of 2.28 eV. If a sodium bar
is illuminated with blue...
Sodium metal has a work function of 2.28 eV. (a) At what wavelength of incident light...
Sodium metal has a work function of 2.28 eV. (a) At what wavelength of incident light will electrons be ejected from the material? (b) If light of wavelength 450 nm is incident on the sodium, determine the maximum kinetic energy of the ejected electrons 13.4
Problem 4: What is the maximum photoelectron speed if sodium of work function 2.75 eV is...
Problem 4: What is the maximum photoelectron speed if sodium of work function 2.75 eV is illuminated with the light of wavelength 300 nm. Find the de Broglie wavelength and momentum of such photoelectron
A surface whose work function is 1.8 eV is illuminated by a light whose wavelength is...
A surface whose work function is 1.8 eV is illuminated by a light whose wavelength is 167 nm. What is the maximum velocity of a photoelectron emitted from the surface? The speed of light is 3 × 108 m/s and Planck’s constant is 6.63 × 10−34 J · s.
just need help on part b. Thanks Sodium has a work function of 2.46 eV (a)...
just need help on part b. Thanks
Sodium has a work function of 2.46 eV (a) Find the cutoff wavelength and cutoff frequency for the photoelectric effect wavelength 504.1 frequency 5.951E14Hz nm (b) What is the stopping potential if the incident light has a wavelength of 164 nm? 7.6 Your response differs from the correct answer by more than 10%. Double check your calculations. V
please show all work 4) A metal having a work function of 2.5 eV is illuminated...
please show all work
4) A metal having a work function of 2.5 eV is illuminated with white light that has a continuous wavelength band from 400 nm to 700 nm. For which one of the following ranges of the wavelength band in this white light are photoelectrons NOT produced? (h-6.626 x 10-34 J s, c 3.00 x 108 m/s. 1 eV- 1.60 x 10-19 J) Aner Answer oibn MAW od voa 5) A metal having a work function of...
A photocathode having a work function of 3.4 eV is illuminated with monochromatic electromagnetic radiation whose...
A photocathode having a work function of 3.4 eV is illuminated with monochromatic electromagnetic radiation whose photon energy is 4.6 eV. What is the threshold (cutoff) frequency for photoelectron production? (1 eV = 1.60 × 10-19 J, h = 6.626 × 10-34 J ∙ s) A.9.1 × 1014 Hz B.1.1 × 1015 Hz C.1.0 × 1015 Hz D.2.9 × 1014 Hz 8.2 × 1014 Hz
(1 point) A Silver surface (work function = 4.26 eV) is illuminated with 270 nm light...
(1 point) A Silver surface (work function = 4.26 eV) is illuminated with 270 nm light from a 3 mW laser. How many photons per second are emitted by the laser? 4.0909E15 photons/s Only a small fraction of these photons can interact with electrons at the surface. Suppose this fractional efficiency is 0.00031%. What is the current in the detector assuming all the emitted electrons are captured? пA Note that current is charge(in Coulombs) per second. The charge of one...
A metal having a work function 8 eV is illuminated with monochromatic light whose photon energy...
A metal having a work function 8 eV is illuminated with monochromatic light whose photon energy is 4.7 ev. What is . threshold frequency for photoelectron production? (h - 6.626x 10-34 J s, 1 ev-1.60 x 1019 J) 5.1x1014 Hz 7.9x1014 Hz 9.6x1014 Hz 6.8x1014 Haz O 1.1x1015 Hz 0 3 MacBook Pro
Photoelectric 1 A Sodium photoelectric surface with a work function of 2.3 eV is illuminated by...
Photoelectric 1 A Sodium photoelectric surface with a work function of 2.3 eV is illuminated by electromagnetic radiations and emits electrons. The emitted electrons travel towards a negatively charged cathode. For the electrons emitted from the Sodium surface, calculate: - The maximum Kinetic Energy of the electrons Their speed at this maximum Kinetic Energy. Calculate the wavelength of the radiation that is incident on the Sodium surface Calculate the minimum frequency of light that will cause the emission of electrons....
Barium has a work function of 2.48 eV. A) What is the maximum kinetic energy of...
Barium has a work function of 2.48 eV. A) What is the maximum kinetic energy of electrons if the metal is illuminated by UV light of wavelength 335 nm ? (answer in eV) B) What is their speed? Please include appropriate units. Please show all work Thank you.
Sodium metal has a work function of 2.28 eV. (a) At what wavelength of incident light will electrons be ejected from the material? (b) If light of wavelength 450 nm is incident on the sodium, determine the maximum kinetic energy of the ejected electrons 13.4
Problem 4: What is the maximum photoelectron speed if sodium of work function 2.75 eV is illuminated with the light of wavelength 300 nm. Find the de Broglie wavelength and momentum of such photoelectron
just need help on part b. Thanks
Sodium has a work function of 2.46 eV (a) Find the cutoff wavelength and cutoff frequency for the photoelectric effect wavelength 504.1 frequency 5.951E14Hz nm (b) What is the stopping potential if the incident light has a wavelength of 164 nm? 7.6 Your response differs from the correct answer by more than 10%. Double check your calculations. V
please show all work
4) A metal having a work function of 2.5 eV is illuminated with white light that has a continuous wavelength band from 400 nm to 700 nm. For which one of the following ranges of the wavelength band in this white light are photoelectrons NOT produced? (h-6.626 x 10-34 J s, c 3.00 x 108 m/s. 1 eV- 1.60 x 10-19 J) Aner Answer oibn MAW od voa 5) A metal having a work function of...
(1 point) A Silver surface (work function = 4.26 eV) is illuminated with 270 nm light from a 3 mW laser. How many photons per second are emitted by the laser? 4.0909E15 photons/s Only a small fraction of these photons can interact with electrons at the surface. Suppose this fractional efficiency is 0.00031%. What is the current in the detector assuming all the emitted electrons are captured? пA Note that current is charge(in Coulombs) per second. The charge of one...
A metal having a work function 8 eV is illuminated with monochromatic light whose photon energy is 4.7 ev. What is . threshold frequency for photoelectron production? (h - 6.626x 10-34 J s, 1 ev-1.60 x 1019 J) 5.1x1014 Hz 7.9x1014 Hz 9.6x1014 Hz 6.8x1014 Haz O 1.1x1015 Hz 0 3 MacBook Pro
Photoelectric 1 A Sodium photoelectric surface with a work function of 2.3 eV is illuminated by electromagnetic radiations and emits electrons. The emitted electrons travel towards a negatively charged cathode. For the electrons emitted from the Sodium surface, calculate: - The maximum Kinetic Energy of the electrons Their speed at this maximum Kinetic Energy. Calculate the wavelength of the radiation that is incident on the Sodium surface Calculate the minimum frequency of light that will cause the emission of electrons....
Most questions answered within 3 hours.
-
If 5.70 g of potassium react with water, how many grams of
hydrogen gas, H2, are...
asked 4 minutes ago -
How many moles of CO2 and H2O will be
produced by combustion analysis of 0.010 mol...
asked 3 minutes ago -
Tennis champion Maria Sharapova is capable of serving a tennis
ball at 126 mph.
b) What...
asked 11 minutes ago -
The electric potential V in the space between the plates of a
given vacuum tube is...
asked 20 minutes ago -
The Hydroboration-Oxidation of an Alkene to Yield 1-Octanol.
1-octene to 1-octanol using BH3-THF
What might be...
asked 25 minutes ago -
You draw and keep a single bill from a hat that contains a
$11, $55, $20...
asked 42 minutes ago -
Write a Java program that has the following methods:
findSum - a method that takes in...
asked 43 minutes ago -
A coffee cup calorimeter initially contains 135g of water at
22.0oC. Calcium chloride (21.0g) at the...
asked 47 minutes ago -
A patient is having a magnetic resonance imaging scan (an MRI)
and has neglected to remove...
asked 48 minutes ago -
A student takes a multiple-choice test that has 10 questions.
Each question has two choices. The...
asked 1 hour ago -
Willie Keeler has a lifetime batting average of 0.341. Assume
that Willie Keeler came to bat...
asked 1 hour ago -
Which of the following has the highest boiling point?
A) 0.5m NaCl
B) 0.5m C6H12O6
C)...
asked 1 hour ago