How many photoelectrons are emitted

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

User Account

All Pages