A photon of wavelength 344 nm carries a relativistic mass of (Given Planck's constant = 4.1357 x 10-15 eV s = 6.6261 x 10-34 J s, speed of light = 3 x 1010 cm/s): a) 6.4 x 10-36 g b) 6.4 x 10-33 g 4.0 x 10-17 g d) 4.0 x 10-14 g e) None of the above
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- 4. In an experiment on the photoelectric effect, a metal is illuminated by visible light of different wavelengths. A photoelectron has a maximum kinetic energy of 0.9 eV when red light of wavelength 640 nm is used. With blue light of wavelength 420 nm, the maximum kinetic energy of the photoelectron is 1.9 eV. Use this information to calculate an experimental value for the Planck constant h. [Determine the distance between the electron and proton in an atom if the potential energy UU of the electron is 11 eV (electronvolt, 1 eV =1.6×10−19=1.6×10−19 J). Give your answer in Angstrom (1 A = 10-10 m).For light with a wavelength of 350 nm and with an intensity of /= 10-8 W/m², what is the number of photons/(m²s) in the light beam?
- A) Find the wavelength of a photon that has energy of 27 eVeV. Express your answer with the appropriate units. B) Find the wavelength of an electron that has energy of 27 eVeV. (The energy of the electron is its kinetic energy.) Express your answer with the appropriate units.Based on your answer in Question 7, when light with a wavelength of 198 nm strikes the surface of tin metal, electrons are ejected with a maximum kinetic energy of 2.9 x 10-19 J. What is the binding energy of these electrons to the metal? A 1.2 x 10-18 ) B 1.0 x 10-18 J С) 7.1 х 10-19] 1.98 x 10-7JAn X-ray photon has a wavelength of 0.01 nm. What is the de Broglie wavelength of an electron that has the same energy as the X-ray photon? O 1.5 X 10-3 nm O 3.0 X 10-3 nm O 3.5 X 10-3 nm O 4.0 X 10-3 nm O 2.0 X 10-3 nm O 2.5 X 10-3 nm
- 3. What speed must an electron have if its momentum is to be the same as that of an X-ray photon with a wavelength of 0.30 nm? m/s of19 o oofA certain shade of blue has a frequency of 7.07 × 10¹4 Hz. What is the energy of exactly one photon of this light? Planck's constant is h = 6.626 × 10-34 J.s. E =A 83.0 kg athlete running a "4-minute mile" (i.e. 4.00 min/mile) _____ nm an electron (me = 9.10939 1028 g) moving at 3.90 106 m/s in an electron microscope _____ nm.