Visible Spectrum 400 nm- 5. Each of the double bonds in retinal, shown in figure below, has two valence electrons that are free to roam around the molecule. These are the electrons that you can model as standing waves within the total length L of the retinal. 700 nm- H3C CH3 CH3 CH3 요 Red Orange Yellow Green H CH3 Single-bond length = 0.154 nm Double-bond length = 0.134 nm Red orange Yellow Green Blue Indiga Violet Since there are two valence electrons per energy level, one of the possible transitions can be possible from the lowest un-occupied energy level to the second highest occupied energy level. If such a transition is caused by the light from a typical GaAsP-based light-emitting-diode (LED), which of the following correctly characterizes the LED in terms of what wavelength radiation is emitted? A. 2322 nm, ultraviolet (UV) B. C. 380 nm, violet 475 nm, blue D. λ=525 nm, green E. λ=594 nm, yellow F. λ=690 nm, red

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Chapter1: Chemical Foundations
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Visible Spectrum
400 nm-
5. Each of the double bonds in retinal, shown in figure below, has two valence electrons that are free to
roam around the molecule. These are the electrons that you can model as standing waves within the
total length L of the retinal.
700 nm-
H3C CH3
CH3
CH3
요
Red
Orange
Yellow
Green
H
CH3
Single-bond length = 0.154 nm
Double-bond length = 0.134 nm
Red
orange
Yellow
Green
Blue
Indiga Violet
Since there are two valence electrons per energy level, one of the possible transitions can be possible
from the lowest un-occupied energy level to the second highest occupied energy level. If such a
transition is caused by the light from a typical GaAsP-based light-emitting-diode (LED), which of the
following correctly characterizes the LED in terms of what wavelength radiation is emitted?
A. 2322 nm, ultraviolet (UV)
B.
C.
380 nm, violet
475 nm, blue
D. λ=525 nm, green
E. λ=594 nm, yellow
F. λ=690 nm, red
Transcribed Image Text:Visible Spectrum 400 nm- 5. Each of the double bonds in retinal, shown in figure below, has two valence electrons that are free to roam around the molecule. These are the electrons that you can model as standing waves within the total length L of the retinal. 700 nm- H3C CH3 CH3 CH3 요 Red Orange Yellow Green H CH3 Single-bond length = 0.154 nm Double-bond length = 0.134 nm Red orange Yellow Green Blue Indiga Violet Since there are two valence electrons per energy level, one of the possible transitions can be possible from the lowest un-occupied energy level to the second highest occupied energy level. If such a transition is caused by the light from a typical GaAsP-based light-emitting-diode (LED), which of the following correctly characterizes the LED in terms of what wavelength radiation is emitted? A. 2322 nm, ultraviolet (UV) B. C. 380 nm, violet 475 nm, blue D. λ=525 nm, green E. λ=594 nm, yellow F. λ=690 nm, red
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