We have not covered in class yet and the book does not offer much help. Is it asking for the value (m)? If so how is that determined? Thanks. Light of wavelength 616 nm (in vacuum) is incident perpendicularly on a soap film (assume n = 1.36) suspended in the air. What are the two smallest nonzero film thicknesses (in nm) f
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Two beams of light with different wavelengths (A > B) are used to produce photoelectrons from a given metal surface. (b) Find Kmax for cesium (W0 = 1.9 eV) if A = 570 nm, and B = 330 nm. Kmax, A ___ eV Kmax, B ___ eV.
What is the frequency, expressed in sec-1, for radiation that has an energy of 3.371 10-19 joules per photon?
These are some tips to remember the following easily wavelength of X-rays produced and the dependence of wavelength and energy on the accelerating potential etc.
If Planck's constant has a value of 3.99 x 10 to the -13 kJ sec/mole, and energy=Planck's constant x velocity of electromagnetic radiation (in nm/sec) all divided by wavelength in nm. What is the energy of a photon of visible light with a wavelength of 600 nm?
If the frequency of a photon of ultraviolet light is 1.19 x 10 to the 15th Hz, what is the wavelength?
What is the energy of a photon that has a wavelength of 9.0 m?
A photon with an energy of 2.00 GeV creates a proton-antiproton pair in which the proton has a kinetic energy of 95.0 MeV. What is the kinetic energy of the antiproton?
An electron moving at a speed of 0.60c collides head on with a positron of speed at 0.60c. Determine the energy and momentum of each photon produced in the process.
A beam of electrons (m=9.11 x 10 (-31) negative thirty first power has an average speed of 1.3 x 10^8 (eigth power) m*s (-1) s to to the negative first power. What is the wavelength of electrons having this average speed? ^=____________________________m Assume your eyes receive a signal crossing of blue light, ^=470nm
You are an engineer designing a switch that works by the photoelectric effect. The metal you wish to use in your device requires 6.7x10 (to the -19 power. J/atom to remove an electron. Will the switch work if the light falling on the metal has a wavlength of 540nm or greater? Why or why not? Radiation in the ultraviolet re
What is the wavelength of the photon emitted by a hydrogen atom during a transition between the quantum levels n=4 and n=2?
The human eye can detect as few as three photons of 5.5X10^-7m light arriving together. How much energy do these three photons collectively represent?
A photon has an energy of 2.4eV. Find its frequency and its wavelength.
The work function of an element is the energy required to remove an electron from the surface of the solid. The work function for cadmium is 378.2 kJ/mol (that is, it takes 378.2 kJ of energy to remove 1 mol of electrons from 1 mol of Cd atoms on the surface of a sample of cadmium.) What is the maximum wavelength of light that c
In a certain nuclear reaction, a gamma ray of energy 0.511 million electronvolts is produced. Compute the frequency of such a photon.