How many photoelectrons are emitted

Assignment Help Physics
Reference no: EM13244935

A beam of blue light of wavelength 500 nm has an intensity of 170 W/m^2. The light shines onto a clean plate of potassium of area of 12 cm^2. Potassium is 2.26 eV.

A. What is the maximum kinetic energy of the photoelctrons emitted by the potassium?

B. How many photoelectrons are emitted from the potassium plate per second?

Reference no: EM13244935

Questions Cloud

Which will be higher price of legos or the price of crayons : Zaley and Iris have Legos andcrayons. Zaley has 5 Legos and 5 crayons, Iris has 2 Legos and 8 crayons. Zaley's utility function for Legos andcrayons is uz(lz, cz) = lz · cz where lz and cz represent quantities of Legos and crayons.Iris' utility fun..
Explain chlorine gas are mixed with excess water : For the following reaction, 6.72 grams of chlorine gas are mixed with excess water. The reaction yields 5.13 grams of hydrochloric acid.
Calculate the test statistic and the df : Calculate the test statistic and the df - Write a conclusion, addressing the research question. Your conclusion should include an interpretation of the 95% confidence bound which is given in the above output
Socially desirable level of pollution : There are only two polluting sources in the region, each of which generates 10 units of pollution for a total of 20 units released into the environment. The government determines that emissions must be reduced by 10 units across the region to achieve..
How many photoelectrons are emitted : A beam of blue light of wavelength 500 nm has an intensity of 170 W/m^2, How many photoelectrons are emitted from the potassium plate per second
Explain what are technological applications : What are 2 technological applications of Entropy, free energy and equilibrium. and explain
What is the radius of the orbit : A positively charged He+ atom has two protons in the nucleus and one electron in the shell. In a classic model of the atom, What is the radius of the orbit
What were the equilibrium levels of the real interest rate : Due to its remoteness, Siberia can be considered as a closedeconomy. Recent data about its popula- tion movements indicate thatthe region suffered from a severe loss in its working agepopulation from 1995 to 2005.
Explain what is the molecular formula for the compound : A 1.00 g sample of a gaseous compound of boron and hydrogen occupies 0.820 L at 1.00 atm and 3 degrees C. What is the molecular formula for the compound

Reviews

Write a Review

Physics Questions & Answers

  Find the magnitude of the resulting magnetic field

A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.

  Find the equivalent resistance

A resistor is in the shape of a cube, with each side of resistance  R . Find the equivalent resistance between any two of its adjacent corners.

  What is the electric field at the location

Question: Field and force with three charges? What is the electric field at the location of Q1, due to  Q 2 ?

  What is the maximum displacement of the bridge deck

What is the maximum displacement of the bridge deck?

  What is the magnitude of the current in the wire

What is the magnitude of the current in the wire as a function of time?

  Blackbody

Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.

  Gravity conveyor

Illustrate the cause of the components accelerating from rest down the conveyor.

  Calculate the dc voltage

Calculate the dc voltage applied to the circuit.

  Quadrupole moments in the shell model

Quadrupole moments in the shell model

  Determine the tension in each string

Determine the tension in each string

  Introductory mechanics: dynamics

Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.

  Evaluate maximum altitude

Evaluate maximum altitude?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd