Why do we use Hg vapor for fluorescent light instead of Neon? Why do fluorescent lights...
Why do we use Hg vapor for fluorescent light instead of Neon? Why do fluorescent lights use phosphors?
Homework Answers
Generally flourescent lamps, It can be ionised by Mercury vapore when there are in glass tube. This causes electrons in the gas to Emit photons at UV frequencies by going excitation of electrons . And conversion of uv light cannot be energy losses.
For producing pleasant light for eye we are using phosphor instead of flourescent lamp. It is used to convert uv light in to the visible-light radiation .this phosphor producing bluish white
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Why do we use Hg vapor for fluorescent light instead of Neon?
Why do fluorescent lights...
The mercury used in fluorescent lights is toxic. It would be great if we could find...
The mercury used in fluorescent lights is toxic. It would be great if we could find an alternative vapor in the discharge tube that was not toxic. We know that we can make good discharge lamps with sodium – why not use sodium (which produces yellow light) and coat the tube with phosphors to make white light?
Neon lights is used to describe a number of gaseous discharges that do not contain neon much like xerox is used to describe a photocopier. Describe how a true neon light compares in color to a mercury...
Neon lights is used to describe a number of gaseous discharges that do not contain neon much like xerox is used to describe a photocopier. Describe how a true neon light compares in color to a mercury light .
Why at night, under the mercury or sodium vapor lights in a mall parking lot, do...
Why at night, under the mercury or sodium vapor lights in a mall parking lot, do cars seem to be peculiar colors?
LED lights cost 2-3x more than incandescent or compact fluorescent lights, but they use 50-90% less...
LED lights cost 2-3x more than incandescent or compact fluorescent lights, but they use 50-90% less energy and last up to 27 years. Can you think of any marketing strategies to encourage low-income households to purchase LED lights and help them save on energy costs for the next two decades? (Think of the four P's: product, price, place, promotion)
Why do we use an ANOVA instead of doing multiple T-tests?
Why do we use an ANOVA instead of doing multiple T-tests?
2. Why do we use H3PO4 instead of HCl as a catalyst for the synthesis of...
2. Why do we use H3PO4 instead of HCl as a catalyst for the synthesis of cyclohexene? (3 pts.)
when computing the cross product why do we use a -j instead of j?
when computing the cross product why do we use a -j instead of j?
worksheet torcyclohexene" 1. Why do we use H3PO4 instead of H2SO4 as a catalyst for the...
worksheet torcyclohexene" 1. Why do we use H3PO4 instead of H2SO4 as a catalyst for the synthesis of cyclohexene? (2 pts.) 2. Why do we use H3PO4 instead of HCl as a catalyst for the synthesis of cyclohexene? (3 pts.) 3. What alkeneſs) would be produced on dehydration of each of the following alcohols? If more than one product is possible, use Zaitsev's rule to predict which product would be formed in greater amounts. (9 pts.) Hz a) 2-methylcyclohexanol bi...
In gas chromatography (GC), why do we use a FAME standard instead of an alkane standard...
In gas chromatography (GC), why do we use a FAME standard instead of an alkane standard and how can we still use this to calculate a retention index?
You want to use PGLO to produce red fluorescent protein (RFP) instead of green fluorescent protein...
You want to use PGLO to produce red fluorescent protein (RFP) instead of green fluorescent protein (GFP). To do so you cut out the GFP gene from PGLO with two restriction enzymes, and replace it with the coding sequence for REP After you successfully created a modified version of the PGLO plasmid with the RFP in place of the GFP you transform this plasmid into E. coli and plate it onto LB plates containing both ampicillin and arabinose. After an...
2. Why do we use H3PO4 instead of HCl as a catalyst for the synthesis of cyclohexene? (3 pts.)
worksheet torcyclohexene" 1. Why do we use H3PO4 instead of H2SO4 as a catalyst for the synthesis of cyclohexene? (2 pts.) 2. Why do we use H3PO4 instead of HCl as a catalyst for the synthesis of cyclohexene? (3 pts.) 3. What alkeneſs) would be produced on dehydration of each of the following alcohols? If more than one product is possible, use Zaitsev's rule to predict which product would be formed in greater amounts. (9 pts.) Hz a) 2-methylcyclohexanol bi...
You want to use PGLO to produce red fluorescent protein (RFP) instead of green fluorescent protein (GFP). To do so you cut out the GFP gene from PGLO with two restriction enzymes, and replace it with the coding sequence for REP After you successfully created a modified version of the PGLO plasmid with the RFP in place of the GFP you transform this plasmid into E. coli and plate it onto LB plates containing both ampicillin and arabinose. After an...
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