The work function of a certain metal is found to be 1.82 ev. What is the stopping potential required to to stop the current in a photoelectric effect experiment if the wavelength of the incident light is 452 nm. Round your answer to 3 significant figures. Add your answer

An X-ray photon moving along the x-direction is scattered by a stationary electron. The initial frequency of the photon is fi = 8 x 10t° Hz and the final frequency is fr = been scattered. In other words finesthe angle 0 that the outgoing photon makes with respect to the x-axis. Give your answer in degrees to 3 significant figures. Sketch a diagram showing the directions of the initial and final momenta. 7.75 x 1018 Hz. Find the direction of the photon's momentum after it has

how would you answer this? The maximum kinetic energy of photoelectrons is plotted as a function of the frequency of incident light. The slope of this graph is.. would appreciate work shown for this question, thanks   a Planck’s constant. b Rydberg’s constant. c Coulomb’s constant. d Newton’s gravitational constant.

O https://www-awu.aleks.com/aiek ROEqmvAnknhdcHJmAch Blackbody b Answered: Decide. Convert grams Calc... * Convert hertz (Hz] t. G VidQuiz: Trans. In B... Syllabus: 1A Blake F O ELECTRONIC STRUCTURE AND CHEMICAL BONDING Understanding the meaning of a de Broglie wavelength Imagine an alternate universe where the value of the Planck constant is 6.62607 J·s. In that universe, which of the following objects would require quantum mechanics to describe, that is, would objects would act like everyday objects, and be adequately described by classical mechanics? object quantum or classical? A car with a mass of 1100. kg, 4.0 m long, moving at O classical 112.0 km/h. O quantum A grain of sand with a mass of 205 mg, 795. um wide, moving at 6.00 mm/s. O classical O quantum An eyelash mite with a mass of 13.6 ug, 205 um wide, moving at 29. um/s. O classical O quantum An atom with a mass of 1.0 x 10-25 kg, 56. pm wide, moving at 222. m/s. O classical O quantum Explanation Check 72022 McGraw Hill…

temperature nm inside a cavity of volume 100cm³ when the is 25 °C. Hint: make a rectangular approximation of the integral. 13. Demonstrate that the Planck distribution reduces to the Rayleigh- Jeans law at long wavelengths. ical coordinates. 14. Normalize the following wavefunction: rez in 3-D space using spher- 15 si muis illises

In the photoelectric-effect experiment, as illustrated by the figure, a current is measured while light is shining on the cathode. But this does not appear to be a complete circuit, so how can there be a current? Explain.

Learning Goal: To understand how to find the wavelength and diffraction patterns of electrons. An electron beam is incident on a single slit of width a. The electron beam was generated using a potential difference of magnitude V. After passing through the slit, the diffracted electrons are collected on a screen that is a distance L away from the slit. Assume that Vis small enough so that the electrons are nonrelativistic. Ultimately, you will find the width of the central maximum for the diffraction pattern. Part B What is the wavelength of the electron beam? Use the de Broglie relation and the momentum that you found in Part A. Express your answer in terms of h, me, e, and V. X = [5] ΑΣΦ Submit Request Answer ?

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The work function of cesium is 2.1 eV. ▾ Part A Determine the lowest frequency photon that can eject an electron from cesium. Express your answer with the appropriate units. Templates Symbols undo' rego Teset keyboard shortcuts Help Value Units Request Answer Part B Determine the maximum possible kinetic energy in electron volts of a photoelectron ejected from the metal that absorbs a 320-nm photon. Express your answer in electronvolts. Templates Symbols undo' redo Teset keyboard shortcuts Help Kmax= eV f= Submit