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mccary1988 mccary1988
wrote...
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9 years ago
Calculate the energy of a photon of electromagnetic radiation at each of the following wavelengths.
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wrote...
9 years ago
a) 632.8 nm (wavelength of red light from helium-neon laser)
b) 503 nm (wavelength of maximum solar radiation)
c) 0.052 nm (a wavelength contained in medical X-rays) (use 2 sig figs)

Part A
1 nm = 10^-9 m
632.8 nm = 632.8×10^-9 m = 6.328×10^-7 m
c = 2.998×10^8 m/s
λ = 6.328×10^-7 m
ƒ = _____
ƒ = c / λ
ƒ = (2.998×10^8 m/s) / (6.328×10^-7 m)
ƒ = 4.738×10^14 s-1

Part B
1 nm = 10^-9 m
503 nm = 503×10^-9 m = 5.03×10^-7 m
c = 2.998×10^8 m/s
λ = 5.03×10^-7 m
ƒ = _____
ƒ = c / λ
ƒ = (2.998×10^8 m/s) / (5.03×10^-7 m)
ƒ = 5.960×10^14 s-1

Part C
1 nm = 10^-9 m
0.0520 nm = 0.0520×10^-9 m = 5.20×10^-11 m
c = 2.998×10^8 m/s
λ = 5.20×10^-11 m
ƒ = _____
ƒ = c / λ
ƒ = (2.998×10^8 m/s) / (5.20×10^-11 m)
ƒ = 5.765×10^18 s-1
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