Question

In: Physics

In the photoelectric experiment, green light, with a wavelength of 522 nm is the longest-wavelength radiation...

In the photoelectric experiment, green light, with a wavelength of 522 nm is the longest-wavelength radiation that can cause the photoemission ofelectrons from a clean sodium surface.

  1. a) What is the work function of sodium, in electron-volts?

  2. b) If UV (ultraviolet) radiation of wavelength 250 nm is incident to the sodium surface, whatwill be the kinetic energy of the photoemitted electrons, in electron-volts?

Solutions

Expert Solution


Related Solutions

In the photoelectric effect experiment, a light photon with a wavelength λ=525 nm hits a metallic...
In the photoelectric effect experiment, a light photon with a wavelength λ=525 nm hits a metallic cesium (work function = 3.43 ×10−34 J).\ What is the kinetic energy of the photoelectron produced?
In a diffraction grating experiment, green light of wavelength  λ = 533 nm is directed on a...
In a diffraction grating experiment, green light of wavelength  λ = 533 nm is directed on a diffraction grating that has N = 577 /mm lines. The diffraction pattern is projected on a screen that's located 172.5 (cm from the grating. Find the distance  between the first bright fringe and third dark fringe on the screen. your answer should be in SI units (meters) This is a diffraction grating problem, you can not use the approximation
A photoelectric experiment was performed by separately shining a laser at 450 nm (blue light) and...
A photoelectric experiment was performed by separately shining a laser at 450 nm (blue light) and a laser at 560 nm (yellow light) on a clean metal surface and measuring the number and kinetic energy of the ejected electrons. Which light would generate more electrons? Which light would eject electrons with greater kinetic energy? Assume that the same number of photons is delivered to the metal surface by each laser and that the frequencies of the laser lights exceed the...
1, Which carries more energy, yellow light with a wavelength of 580 nm or green light...
1, Which carries more energy, yellow light with a wavelength of 580 nm or green light with a wavelength of 560 nm? (Explain or show a calculation). 2,Why do we see a characteristic color (in the flame) for each cation? 4,The energy of an electron in n = 1 for a hydrogen atoms was found to be -2.179 x10-18 J/atom. Convert this value to kJ/mole. 5,Calculate the energy of light emitted when an electron changes from n = 3 to...
An XRD experiment was performed Cu Ka radiation of wavelength 0.154 nm on an FCC crystal...
An XRD experiment was performed Cu Ka radiation of wavelength 0.154 nm on an FCC crystal with lattice constant = 3.61 Å. What are the Miller indices of the planes with lowest and highest Bragg angles?
In a Young's double-slit experiment the wavelength of light used is 462 nm (in vacuum), and...
In a Young's double-slit experiment the wavelength of light used is 462 nm (in vacuum), and the separation between the slits is 2.1 × 10-6 m. Determine the angle that locates (a) the dark fringe for which m = 0, (b) the bright fringe for which m = 1, (c) the dark fringe for which m = 1, and (d) the bright fringe for which m = 2.
In a Young's double-slit experiment the wavelength of light used is 469 nm (in vacuum), and...
In a Young's double-slit experiment the wavelength of light used is 469 nm (in vacuum), and the separation between the slits is 2.1 × 10-6 m. Determine the angle that locates (a) the dark fringe for which m = 0, (b) the bright fringe for which m = 1, (c) the dark fringe for which m = 1, and (d) the bright fringe for which m = 2.
What is the thinnest film that produces a strong reflection for green light with a wavelength of 500 nm?
A very thin oil film (n=1.25) floats on water (n=1.33). What is the thinnest film that produces a strong reflection for green light with a wavelength of 500 nm? d=________nm  
The human eye is most sensitive to green light of wavelength 505 nm . Experiments have...
The human eye is most sensitive to green light of wavelength 505 nm . Experiments have found that when people are kept in a dark room until their eyes adapt to the darkness, a single photon of green light will trigger receptor cells in the rods of the retina. 1.What is the frequency of this photon? 2.How much energy (in joules and eV ) does it deliver to the receptor cells? 3.To appreciate what a small amount of energy this...
The wavelength of the green light in the plastic will be
The next three questions pertain to a certain green light that has a wavelength of 600nm is vacuum. The refractive index of a certain plastic is 1.2.The wavelength of the green light in the plastic will beGroup of answer choices120 nm.240 nm.400 nm.500 nm.720 nm.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT