A 3.2 eV photon hits a metal electrode with a work-function of 2.3 eV. What can be said about this situation? O an electron is ejected from the surface with a positive Kinetic Energy O an electron is ejected from the surface but has no Kinetic Energy O an electron is ejected from the surface with a negative Kinetic Energy O an electron is not ejected from the surface

Use the following number convention for this question. 1 Red 2 Blue 3 Ultraviolet 4 Violet 5 Infrared 6 Green A student is asked to predict the type of EMR emitted when the electron in a hydrogen atom drops from a higher level to a lower level. The transitions are . n = 8 to n = 5 then the EMR is n = 4 to n = 2 then the EMR is n = 3 to n = 1 then the EMR is n = 3 to n = 2 the the EMR is Which of these students is correct? Student W said 5631 Student X said 3651 Student Y said 1642 Student Z said 4613

An electron within the hydrogen atom is excited from n1 to n4. The electron then "falls" back to ni in two steps (n4 -> n2, n2 -> n1). Which of the following statements is true about the light emitted during this process? One photons will be emitted. Two photons will be emitted. O Three photons will be emitted. Four photons will be emitted.

Suppose a linear accelerator (linac) creates a X-ray beam where every individual photon has an energy of 19 MeV. If 3x1010 photons are produced over 90x10-15 s, as measured through an area of 3.1 m², determine the intensity of the X-ray beam. I = B W/m²

An 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

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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?

The work function of a metal is is 2.04 e V. What will be the frequency of light required to eject electrons? * (2 Points) 3.2 x10 ^15 Hz O 4.2 x10 ^15 Hz O 3.2 x10 ^15 Hz 4.9 x19 ^14 Hz

A recent study found that electrons that have energies between 3.45 eV and 20.5 eV can cause breaks in a DNA molecule even though they do not ionize the molecule. If a single photon were to transfer its energy to a single electron, what range of light wavelengths could cause DNA breaks? minimum wavelength: radio In which part of the electromagnetic spectrum does this light lie? O ultraviolet infrared nm gamma ray maximum wavelength: nm