What is the energy of the ejected electrons

Reference no: EM13274785

Calcium has a work function of 2.8 eV. If light of frequency 4.3 1015 Hz strikes the surface of calcium, what is the energy of the ejected electrons? answer is supposed to be in eV.

Reference no: EM13274785

Questions Cloud

Determine the mean and variance of the random variable : Consider a random variable that obeys a uniform desist and varies from 2 to 5. a). Determine the mean and variance of the random variable. b). what is probability that the random variable is between 2 and 3

Higher risk tends to result in a higher share price : 9. Given the following statement, please indicate whether it is true or false, and why: "High cash flow is generally associated with a lower share price whereas higher risk tends to result in a higher share price." (Limit your answer to less than 100..

What is the minimum photon frequency : The work function for a metal is 3.8 eV. What is the minimum photon frequency that can just eject an electron from the metal

What type of testing appropriate for testing the device : Consider that you have an op amp integrated circuit package such as the LM741 in Appendix C. what type of testing appropriate for testing this device. write a short test plan for doing.

What is the energy of the ejected electrons : Calcium has a work function of 2.8 eV. If light of frequency 4.3 1015 Hz strikes the surface of calcium, what is the energy of the ejected electrons

Compute the corresponding wavelenghts of vibrations : Calculate the corresponding wavelenghts (in nm) and energies (in kJ/mol) of these vibrations.

At what frequency will the phase angle be 45 degrees : A series RLC circuit has a resonant frequency of 40 kHz and the Q is 20. At what frequency will the phase angle be 45 degrees

Determine the mass of the star : Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. What is the mass of the star

Design a circuit that lets exactly one full negative pulse : Design a circuit that lets exactly one full negative pulse (from an input train of pulses) pass through to the output, after a button is pushed.

User Account

All Pages