Find the cutoff frequency for platinum

Assignment Help Physics

Reference no: EM13539943

The work function for platinum is 6.35 eV.
(a) Convert the value of the work function from electron volts to joules.
J

(b) Find the cutoff frequency for platinum.
Hz

(c) What maximum wavelength of light incident on platinum releases photoelectrons from the platinum's surface?
m

(d) If light of energy 7.2 eV is incident on platinum, what is the maximum kinetic energy of the ejected photoelectrons? Give the answer in electron volts.
eV

(e) For photons of energy 7.2 eV, what stopping potential would be required to arrest the current of photoelectrons?
V

Reference no: EM13539943

Questions Cloud

Ultraviolet light is incident normally on the surface : Ultraviolet light is incident normally on the surface of a certain substance. The binding energy of the electrons in this substance is 3.44 eV. The incident light has an intensity of 0.063 W/m2

Find what is the maximum force that can be exerted : Assume that Young's Modulus for bone is 1.50 1010 N/m2 and that the bone will fracture if more than 1.50 108 N/m2 is exerted. What is the maximum force that can be exerted on the femur bone

Evaluate the moment of inertia of the wheel : A block of mass = 2.9 is attached to a string that is wrapped around the circumference of a wheel of radius = 8.3. Find the moment of inertia of the wheel

What is the unextended due date for the income tax return : What is the unextended due date for the income tax return of a corporation whose fiscal year ends on February 28? What is its extended due date?

Find the cutoff frequency for platinum : The work function for platinum is 6.35 eV. Convert the value of the work function from electron volts to joules. Find the cutoff frequency for platinum.

Determine james income or loss from the business : Determine Jamess income or loss from the business. Do not include in this figure items that would not be included on his Schedule C but detail those items separately. Calculate James's self-employment taxes assuming he has no other income subject ..

Obtain how fast will she be moving at the bottom of swing : A 23.0 kg child plays on a swing having support ropes that are 2.10 m long. How fast will she be moving at the bottom of the swing

Calculate what is the mass of the meter stick : A meter stick is supported on a fulcrum at the 19 cm mark. A 0.60 kg object is hung from the zero end of the meter stick, What is the mass of the meter stick

What is the work function of the metal : Electrons are ejected from a certain metallic surface with speeds ranging up to 4.2 105 m/s when light with a wavelength of ? = 615 nm is used. What is the work function of the metal?

User Account

All Pages