How much energy does a photon with a wavelength equal to 350 nm have?
1. 2.32
The photon energy (E) is given by,
E = h*c/lambda = 5.67 E -19 J
where
h = 6.63 E-34 Js (Planck's constant)
c = 3.00 E+08 m/s (speed of light)
lambda = 350 E-09 m (wavelength)
1 nm = 1E-09 m
You can solve for energy with E = hv and c = wavelength *
v
You need to subititute v with the second equation so that you can
incorperate the wavelength into the energy equation.
So
V = c/wavelength
and thus: E = h(c/wavelength). Remember to convert nm (for the
wavelength) to m as the speed of light is in meters.
5.68 * 10^-19 J
so answer is 4
How much energy does a photon with a wavelength equal to 350 nm have? 1. 2.32
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