Visible light falls into wavelength ranges of 400-700 nm, for which 1 m=1×109 nm The energy and wavelength of light are related by the equation E=hcλ where E is energy in Joules, h is Planck's constant ( 6.626×10−34 J-s ), c is the speed of light ( 2.998×108 m/s), and λ is the wavelength in m. If a visible light photon has a wavelength of 632.3 nm, what is the energy of the photon (in J)?

Visible light falls into wavelength ranges of 400-700 nm, for which 1 m=1×109 nm The energy and wavelength of light are related by the equation E=hcλ where E is energy in Joules, h is Planck's constant ( 6.626×10−34 J-s ), c is the speed of light ( 2.998×108 m/s), and λ is the wavelength in m. If a visible light photon has a wavelength of 632.3 nm, what is the energy of the photon (in J)?

The Solar System

10th Edition

ISBN:9781337672252

Author:The Solar System

Publisher:The Solar System

Chapter7: Atoms And Spectra

Section: Chapter Questions

Problem 9P

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Question

Visible light falls into wavelength ranges of 400-700 nm, for which

1 m=1×109 nm

The energy and wavelength of light are related by the equation
E=hcλ

where E is energy in Joules, h is Planck's constant (

6.626×10−34 J-s ), c is the speed of light (

2.998×108 m/s), and λ is the wavelength in m.

If a visible light photon has a wavelength of 632.3 nm, what is the energy of the photon (in J)?

Definition Definition Rate at which light travels, measured in a vacuum. The speed of light is a universal physical constant used in many areas of physics, most commonly denoted by the letter c . The value of the speed of light c = 299,792,458 m/s, but for most of the calculations, the value of the speed of light is approximated as c = 3 x 10 8 m/s.

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