(adsbygoogle = window.adsbygoogle || []).push({}); [SOLVED] I'm doing something wrong...

1. A red laser with a wavelength of 650 nm and a blue laser with a wavelength of 450 nn emit laser beams with the same light power. How do their rates of photon emission compare? Answer this by computing R[tex]_{red}[/tex] / R[tex]_{blue}[/tex]

2. P = Rhf = dNhf / dt = dE[tex]_{light}[/tex] / dt

R = dN / dt

E[tex]_{light}[/tex] = Nhf, where N is the number of photons

f = c / [tex]\lambda[/tex]

h = 6.624E-32 Js

3. I have the f[tex]_{red}[/tex] = 4.62 x 10[tex]^{14}[/tex] s

and f[tex]_{blue}[/tex] = 6.67 x 10[tex]^{14}[/tex] s , it says their Powers are the same, so I go ahead and went and equaled:

P[tex]_{red}[/tex] to P[tex]_{blue}[/tex], which is:

P[tex]_{red}[/tex]h[tex]_{red}[/tex]f[tex]_{red}[/tex] = P[tex]_{blue}[/tex]h[tex]_{blue}[/tex]f[tex]_{blue}[/tex]

but I am tired and can't see the relevance, because when I multiplied times h [in Js] and then I divide like explained, I get .6925, and the ANSWER is 1.44.

Help? Please?

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# Homework Help: I'm doing something wrong

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