Find the maximum kinetic energy of the photelectrons

Assignment Help Physics

Reference no: EM13489631

The work function for potassium is 2.25eV. A beam with a wavelength of 400nm and an intensity of 10^-9W/m^2. Find

a) the maximum kinetic energy of the photelectrons.

b) the number of electrons emitted per meter squared per second from the surface, assuming 3% of the incident photons are effective in ejecting electrons.

Reference no: EM13489631

Questions Cloud

What was the change in the volume of the gas : The pressure of an ideal gas remains at 200 Pa while 1000 joules of heat are removed and its internal energy increases by 2000 joules. What was the change in the volume of the gas

Determine work produced by the turbine : A simple ideal Rankine cycle which uses water as the working fluid operates it's condenser at 45 degrees C. determine Work produced by the turbine

Who is an internal auditor of acme corporation : Audit Scope and Purpose - Needs to be developed based on the audit findings. Need paragraph or few lines on each. What is the scope of the audit and what is the primary purpose. Remember the definition of internal auditing.

Calculate the change in specific entropy of air : Calculate the change in specific entropy of air as it is expanded from 2500kPa and 550 degrees C to 120kPa and 65 degrees C

Find the maximum kinetic energy of the photelectrons : The work function for potassium is 2.25eV. A beam with a wavelength of 400nm and an intensity of 10^-9W/m^2. find the maximum kinetic energy of the photelectrons

Explain the calculated molecular weight of an unknown : What effect would each of the following have on the calculated molecular weight of an unknown. Would the calculated value be higher than the true value. Lower. Same

Devise a smart objective for your virtual project : Before embarking on any project, setting an overall target objective can assist you to focus on the main purpose and aims of the project. You are required to devise a SMART objective for your virtual project.

Enhance effectiveness and efficacy of functions and services : Provide recommendations to propose constructive actions to enhance the effectiveness and efficacy of functions and services.

How far does the lighter fragment slide : An object at rest on a flat, horizontal surface explodes into two fragments, one seven times as massive as the other. How far does the lighter fragment slide

User Account

All Pages