Platinum has a work function of 6.35 eV, and iron has a work function of 4.50 eV.

Question:

Platinum has a work function of 6.35 eV, and iron has a work function of 4.50 eV. Light of frequency 1.88 × 1015 Hz ejects electrons from both of these surfaces.

(a) From which surface will the ejected electrons have a greater maximum kinetic energy? Explain.

(b) Calculate the maximum kinetic energy of ejected electrons for each surface?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Physics

ISBN: 978-0321976444

5th edition

Authors: James S. Walker

See More Books

Question Posted: Aug 31, 2017 01:59 PM

See More Questions

Barium has a work function of 2.48eV. What is the maximum kinetic energy of electrons if the metal is illuminated by UV light of wavelength 365nm? What is their speed?
Light of wavelength 424nm falls on a metal which has a work function of 2.28eV (a) How much voltage should be applied to bring the current to zero? (b) What is the maximum speed of the emitted...
What is the longest wavelength of light that can cause the release of electrons from a metal that has a work function of 3.50 eV?
Consider the pistoncylinder assembly containing a pure gas shown below. The initial volume of the gas is 0.05 m3, the initial pressure is 1 bar, and the cross-sectional area of the piston is 0.1 m2....
Describe four signs that help indicate when ABC systems are likely to provide the most benefits.
Complete the following MRP matrix for itemA: Period 4 578 Item: A Lot Size: Mult 50LT:2 Gross Requirements Scheduled Receipts Projected on Hand 50 Net Requirements Planned Order Receipts Planned...
19. Describe the reporting requirements for a governmental not-for-profit entity with both governmental and business-type activities.
Suppose that in past years the average price per square foot for warehouses in the United States has been $32.28. A national real estate investor wants to determine whether that figure has changed...
Use the formula for present value of money to calculate the amount you need to invest now in one lump sum in order to have $100,000 after 18 years with an APR of 6% compounded quarterly. Round your...
Funtime, Inc., manufactures video game machines. Market saturation and technological innovations caused pricing pressures that resulted in declining profits. To stem the slide in profits until new...
Electromagnetic waves, with frequencies ranging from 4.00 1014 Hz to 9.00 1016 Hz, are incident on an aluminum surface. Given that the work function of aluminum is 4.08 eV, find (a) The maximum...
When light with a frequency 1 = 547.5 THz illuminates a metal surface, the most energetic photoelectrons have 1.260 10-19 J of kinetic energy. When light with a frequency 2 = 738.8 THz is used...
Kosslyns mental scanning experiments suggested that imagery shares the same mechanisms as perception (that is, creates a depictive representation in the persons mind), but these results and others...
Analysis of the Volkswagen Scandal Possible Solutions for Recovery The Volkswagen scandal is a notorious example of how corporations can shape the ethical and political issues of the environment. The...
Shelby isn't sure if her forklift can safely handle the pallet she is being asked to move. What can she check to be sure
If schedule acceleration increases costs, how could schedule elongation reduce costs? If schedule acceleration increases costs, how could schedule elongation reduce costs? For the same total...
Laser Care Hospital is looking to raise tax-exempt municipal funds in the bond market. As an issuer of the bond, which of the following is not a part of the bond process that Laser Care Hospital will...
Find the critical value t a/2 corresponding to a 95% confidence level. (13.046, 22.15) X= 17.598 Sx= 16.01712719 n=50
When a drug is recalled for safety concerns (e.g., too many people having serious adverse reactions), the pharmaceutical company making the drug can only re-issue it by convincing the FDA that the...
If M = 7, s = 2, and X = 9.5, what is z?
A capacitor is connected to a variable-frequency ac voltage source. (a) If the frequency increases by a factor of 3, the capacitive reactance will be (1) 3, (2) 1/3, (3) 9, (4) 1/9 times the original...
With a single 150-mH inductor in a circuit with a 60-Hz voltage source, a current of 1.6 A is measured on an ac ammeter. (a) What is the rms voltage of the source? (b) What is the phase angle between...
(a) What inductance has the same reactance in a 120-V, 60-Hz circuit as a capacitance of 10 F? (b) What would be the ratio of inductive reactance to capacitive reactance if the frequency were changed...
You would like to have a balance of $600,000 at the end of 15 years from monthly savings of $900. If your returns are compounded monthly, what is the APR you need to meet your goal?
Explain the importance of covariance and correlation between assets and understanding the expected value, variance, and standard deviation of a random variable and of returns on a portfolio.
On August 1 , 2 0 2 3 , Mark Diamond began a tour company in the Northwest Territories called Millennium Arctic Tours. The following occurred during the first month of operations: Aug. 1 Purchased...

Platinum has a work function of 6.35 eV, and iron has a work function of 4.50 eV.

Question:

Step by Step Answer:

When photons of the given frequency are incident on platinum and iron some of the energy of the ...View the full answer

Physics

Students also viewed these Modern Physics questions