how much energy does a photon of ultravioletA light have?

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how much energy does a photon of ultravioletA light have?

2007-06-04 14:35:46 · 3 answers · asked by delvic56 1 in Science & Mathematics ➔ Physics

3 answers

E = hf

Go look up planck's constant and estimate the typical frequency of UVA light. Multiply.

f = c / 300 nm = 10^15 hz

2007-06-04 14:41:59 · answer #1 · answered by Anonymous · 1⤊ 2⤋

Energy = nhv
n = 1 pohton
h= one constant I dont feel like looking up
v = freqency

to find freqency its speed of light = wavelength * freqency

the wavelength of ultraviolet light can be looked up

as for the constant just look it up planks constant

speed of light = 3 * 10 ^8 meters per second

2007-06-04 21:42:15 · answer #2 · answered by Flaming Pope 4 · 0⤊ 0⤋

E = hf, find the frequency of UVA light and multiply.

2007-06-04 21:43:05 · answer #3 · answered by msi_cord 7 · 0⤊ 0⤋