Explanation Given data: Wavelength of the red laser is 650 nm. Wavelength of the blue laser is 450 nm. Formula used: Write the expression for power. P = E total t (1) Here, P is the power, E total total energy, and t is the time. Write the expression for total energy. E total = n E photon (2) Here, E photon is the energy of the photon, and n is the number of photons. Write the expression for photon’s energy and wavelength. E photon = h c λ (3) Here, h is the plank’s constant with value as 6.63 × 10 − 34 J ⋅ s , c is the speed of light with value as 3.0 × 10 8 m s , and λ is the wavelength. Combining equation (1), (2) and (3). P = n h c t λ (4) Modifying equation (4) as follows. n t = P λ h c n t = K λ

3rd Edition

ISBN: 9780134201948

Author: Knight, Randall Dewey, Jones, Brian, Field, Stuart

Publisher: Pearson,

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Chapter 28, Problem 58GP

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The ratio of the red laser’s photon emission rate to the blue laser’s photon emission rate.

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Chapter 28, Problem 57GP

Chapter 28, Problem 59GP

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Chapter 28 Solutions

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The ratio of the red laser’s photon emission rate to the blue laser’s photon emission rate.

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Chapter 28 Solutions