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Textbook Expert
Textbook ExpertVerified Tutor
15 Nov 2021

Given information

632.8 nm (wavelength of red light from helium–neon laser)

 

From part 5a:

Wavelength given here is converted from nm to m.(already done in 5a)

   

 

  

 

Step-by-step explanation

Step 1.

Energy of a photon of electromagentic radiation is calculated using the formula:  

    

where,

speed of light

 

h is the Planck's constant and its value is

wavelength,

   

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