Red light has a wavelength of 700 nm and a frequency of 4.3 x 1014 s-1. What is the energy of a single photon of red light?

Question

anonymous · Answer

A.	2.85 x 10-19 J
 		B.	2.85 x 10-20 J
 		C.	2.85 x 10-34 J
 		D.	2.85 x 1019 J

@abb0t @Abmon98

abb0t · Answer

I believe there is a formula for this, but i cannot remember it right now. Do you know it?

abb0t · Answer

It involves planks constant, and speed of light.

anonymous · Answer

E = h*c/λ

anonymous · Answer

lambda**

abb0t · Answer

Yes, I believe that's it. You know wavelength and frequency. Plug it in and solve. This is not that difficult.

abb0t · Answer

The relationship between velocity, frequency, and wavelength of any wave is: $\sf \color{Red}{v=f \lambda}$

abb0t · Answer

just an added FYI.

anonymous · Answer

Can you help me with this one still I'm a little confused what goes where @abb0t