1. A particle loses 7.20 x 10-1⁹ J of energy while emitting light. (a) What is the wavelength of the light that is emitted in nm? What portion of the electromagnetic spectrum does this light represent? (b) What is the frequency of the light emitted in sec-¹? (c) If the wave function for an electron has a wavelength of 2 = 500 nm, which would be equivalent to a visible photon if the electron were light instead of a particle, how fast is the electron moving, in m/sec, according to deBroglie's formula?

1. A particle loses 7.20 x 10-1⁹ J of energy while emitting light. (a) What is the wavelength of the light that is emitted in nm? What portion of the electromagnetic spectrum does this light represent? (b) What is the frequency of the light emitted in sec-¹? (c) If the wave function for an electron has a wavelength of 2 = 500 nm, which would be equivalent to a visible photon if the electron were light instead of a particle, how fast is the electron moving, in m/sec, according to deBroglie's formula?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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de Broglie Equation

The sketch of matter waves is drawn below:

Question

1. A particle loses 7.20 × 10-¹⁹ J of energy while emitting light.
(a) What is the wavelength of the light that is emitted in nm? What portion of the
electromagnetic spectrum does this light represent?
(b) What is the frequency of the light emitted in sec¯¹?
(c) If the wave function for an electron has a wavelength of λ = 500 nm, which would be
equivalent to a visible photon if the electron were light instead of a particle, how fast is
the electron moving, in m/sec, according to deBroglie's formula?

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