A diode laser emits at a wavelength of 988 nm. in the ultraviolet region in the visible region in the infrared region ✔Correct Part B Previous Answers All of its output energy is absorbed in a detector that measures a total energy of 0.54 J over a period of 34 s. How many photons per second are being emitted by the laser? Express your answer using two significant figures. ΠΫΠΙ ΑΣΦ Submit 3 a Request Answer ? photons/s

A diode laser emits at a wavelength of 988 nm. in the ultraviolet region in the visible region in the infrared region ✔Correct Part B Previous Answers All of its output energy is absorbed in a detector that measures a total energy of 0.54 J over a period of 34 s. How many photons per second are being emitted by the laser? Express your answer using two significant figures. ΠΫΠΙ ΑΣΦ Submit 3 a Request Answer ? photons/s

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Final answer should be in joules, six significant digits please
What is the energy of a photon of blue light that has a wavelength of 650 nm? Av=C E, phton = h v A) A B B) C) D) B D DA h = Blanck's constant = 6.63 x10-34 j. S 4.5 x 10-19 J J 5.6 x 1014 J 9.0 x 10-19 J 3.1 x 10-19 J E, phton = h C/A
Now try and rearrange the E = hc/Aequation so that you can find the wavelength of a photon that has an energy of 5.15 x 10-19 J. Type your answer here nm You are incorrect Hint When you do a wavelength calculation your wavelength must have units of meters to match the units of the speed of light! Answered - Incorrect Fullscreen 1 Resubmit %23 12:00 AM の昂 4/30/2021 prt sc delete home end pg up 10 num backspace 8. lock 8. 6. Y home pg up 4. 6. enter G H. K pause ↑ shift pg end alt ctrl ins
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When a red light with a wavelength of 670 nm shines on a piece of metal, an electron is ejected. What is the energy of the photon absorbed by the electron to overcome the attractive forces? 4.7 x 10-35 J -37 4.3 x 10³ J 3.3 x 10-¹⁹ 19 3.0 x 10-¹⁹ J 2.9 x 10-³7 J Below is an emission spectrum with two specific lines labelled 1(orange) and 2 (green). red A Which energy level diagram best represents the labelled electronic transitions? 1 2 1 B 1 2 1 C 2 2 D 1 2 violet O A
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Question 1 Calculate the wavelength (m and nm) and energy (J) of a photon of light of frequency 3.45x1017 s1. Give your answers with the correct number of sig. figs. and in exponential form (1.23E-3). Do not include the units. c = 2.998x108 m/s h = 6.626x10-34 J/s Wavelength = Wavelength = Energy = m nm
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Identify the region of the electromagnetic spectrum where the wavelength measurement of 7.5 nm can be found. A) Gamma rays Wavelength (2) in m 10-11 10-5 10-3 10-1 101 10³ B) Microwaves Infrared Microwaves Radio frequency 1014 1012 1010 106 104 Frequency (v) in s-1 C) Ultraviolet Visible Light D) X-rays 750 nm E) Visible light Gamma 1020 10-9 400 nm 1018 1016 10-7 violet 108