Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV = 1.60 × 10-¹⁹ J. (a) a photon having a frequency of 6.50 x 10¹7 Hz (b) a photon having a wavelength of 2.50 x 10² nm Step 1 (a) The energy of a photon is given by E = hf, where h = 6.63 x 10-34 Js is Planck's constant and f the frequency of the electromagnetic wave associated with the photon. A photon having frequency f = 6.50 x 10¹7 Hz has an energy, expressed in units of electron volts, of E = hf = ·s) ([ x 10³ ev. 6.63 x 10-34 J. x 1017 Hz 1 eV x 10-19.

Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV = 1.60 × 10-¹⁹ J. (a) a photon having a frequency of 6.50 x 10¹7 Hz (b) a photon having a wavelength of 2.50 x 10² nm Step 1 (a) The energy of a photon is given by E = hf, where h = 6.63 x 10-34 Js is Planck's constant and f the frequency of the electromagnetic wave associated with the photon. A photon having frequency f = 6.50 x 10¹7 Hz has an energy, expressed in units of electron volts, of E = hf = ·s) ([ x 10³ ev. 6.63 x 10-34 J. x 1017 Hz 1 eV x 10-19.

College Physics

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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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Question

Find the energy of the following. Express your answers in units of electron volts, noting that 1 eV = 1.60 x 10-19 J.
(a) a photon having a frequency of 6.50 x 10¹7 Hz
(b) a photon having a wavelength of 2.50 x 10² nm
Step 1
(a) The energy of a photon is given by
E = hf,
where h = 6.63 x 10-34 Js is Planck's constant and f the frequency of the electromagnetic wave associated with the photon. A photon having frequency
f = 6.50 x 10¹7 Hz has an energy, expressed in units of electron volts, of
E = hf
= (6.63 × 10-34 J. s) (1
x 10³ ev.
x 10¹7 Hz)
1 eV
x 10-19 1

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