« previous next »

Author Question: Distinguish between fluorescence and phosphorescence. ... (Read 14 times)

justinmsk

  • Hero Member
  • *****
  • Posts: 524
on: Jul 28, 2018
Distinguish between fluorescence and phosphorescence.

Question 2

In Figure OQ32.4, the switch is left in position a for a long time interval and is then quickly thrown to position b. Rank the magnitudes of the voltages across the four circuit elements a short time thereafter from the largest to the smallest.
 
  1.VL > V1200  > 12.0 V > V12
  2.V1200  > VL > 12.0 V > V12
  3.VL > V12  > 12.0 V > V1200  
  4.12.0 V > VL > V12  >  V1200
  5.V12  > 12.0 V > V1200  >  VL
  6.None of the above


ktidd

  • Sr. Member
  • ****
  • Posts: 319
Reply #1 on: Jul 28, 2018
Answer to Question 1

Fluorescence is the immediate emission of radiation, such as visible light, produced
by the absorption of other radiation of a higher frequency. Phosphorescence is the
persistent emission of light following exposure to and removal of incident radiation
from the sample.

Answer to Question 2

1


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Fluorescence recovery after photobleaching (FRAP). Fluorescence recovery after photobleaching (FRAP).
Number of lower molar cusps is one of the features used to distinguish sundadonts from sinodonts. Number of lower molar cusps is one of the features used to distinguish sundadonts from sinodonts.
Fluorescence-activated cell sorter (FACS) separates cells that are labeled diffe Fluorescence-activated cell sorter (FACS) separates cells that are labeled diffe
T cells bound to fluorescence-tagged antibodies to two cell-surface proteins are T cells bound to fluorescence-tagged antibodies to two cell-surface proteins are
Deconvolution fluorescence microscopy yields high-resolution optical sections th Deconvolution fluorescence microscopy yields high-resolution optical sections th
Fluorescence recovery after photobleaching (FRAP) Fluorescence recovery after photobleaching (FRAP)
Video: Introduction to Herpes

For a complete list of videos, visit our video library