A photon has a wavelength of 6.2 meters. Calculate the energy of the photon in joules. (Planck's constant is 6.626 × 10È³Ê joule seconds, the speed of light is 2.998 × 10§ m/s)

Question

ilovebmth1234 · Answer

A. $$3.564*10^{-43}$$
B. $$3.204*10^{-26}$$
C.$$41.08*10^{-34}$$
D. $$13.702*10^{-42}$$

alexanderphantomhive · Answer

E = hc / λ 

E = ((6.626*10^-34)*(2.998*10^8)) / 6.2 

E = 3.17*10^-26 J

alexanderphantomhive · Answer

gosh i really dont know im stumped.

ilovebmth1234 · Answer

that's okay i couldn't figure it out either this equation thing confused me

ilovebmth1234 · Answer

im gonna try your answer and if i get it wrong ill let you know:3

abhisar · Answer

Energy = $\Large\sf \frac{HC}{\lambda}$

ilovebmth1234 · Answer

wait scratch that most of your answer was right

abhisar · Answer

What?

abhisar · Answer

Plug in the values,

Energy = $\sf \Large \frac{6.626 \times 10^{-34} \times 3 \times 10^8}{6.2}$

ilovebmth1234 · Answer

i went for answer B witch was closer to @AlexanderPhantomhive's answer she got and i got it right so the answer is B. 3.204x10^-26

abhisar · Answer

Yes, that's $\huge \checkmark$

ilovebmth1234 · Answer

thank you! both of you for your help :3 i wish i could give both of you medals

abhisar · Answer

You're most welcome c;