Help with light, wavelength, and photons

AI Thread Summary
The discussion revolves around a student seeking help with questions related to the properties of photons emitted from a Helium-Neon LASER. They specifically inquire about the speed of red photons, the calculation of their wavelength, and a comparison of the speeds of LASER photons with X-ray photons. The student has calculated the wavelength as 6.31424 x 10^-7 m and is uncertain about its accuracy. Forum participants emphasize the importance of showing work to receive guidance and encourage the student to demonstrate their understanding for better assistance. Overall, the focus is on clarifying concepts related to photon energy, speed, and wavelength.
jewilki1
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I need help with parts of this question.
6. The red light emitted from a Helium-Neon LASER has an energy of 3.15 x 10^-19 J.
a. At what speed do "red photons travel? I need help with this one.

B. calculate the wavelength of these photons.
I got 6.31424 x 10^-7m. Is this correct.

c. comment on the speeds of the photons from the LASER versus the X-ray photons. I need help with this one.

I am trying to study for a quiz and really need help.

Thanks.
 
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If you show us what you have tried so far (work) and where you are getting stuck, we can point you in a successful direction.
 
I don't know how to do a and c, but I got the answer to b. IS b correct?
and can you help with a and c. Thanks
 
We can't tell you if (b) is correct, unless you show how you got that number.

As for (a) and (c), you have to show some effort. What are your thoughts ?
 
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