« previous next »

Author Question: Why is ultraviolet light not transmitted by glass? What will be an ideal ... (Read 26 times)

lbcchick

  • Hero Member
  • *****
  • Posts: 550
on: Jul 29, 2018
Why is ultraviolet light not transmitted by glass?
 
  What will be an ideal response?

Question 2

Describe a model for explaining how light is transmitted through glass.
 
  What will be an ideal response?


tsternbergh47

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: Ultraviolet light (UV) is in the range of frequencies that resonate with atoms and molecules in the glass. At resonance, the amplitudes of vibration are very large and atoms and molecules hold onto UV energy for millions of vibrations, during which time the energy is passed to neighboring atoms by many collisions. The transmitted energy takes the form of thermal energy instead of light. So although glass is transparent to visible light, it isn't to UV.

Answer to Question 2

Answer: According to the model of light presented in the text, when a photon is incident on a glass surface it is absorbed by a glass molecule or atom and forced into vibration. This vibration results in the emission of an indistinguishable photon, which travels to the next atom or molecule to repeat the process. A cascading process of absorption and reemission occurs until the glass molecule at the far surface absorbs and reemits an identical photon.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

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

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

The absorption of light energy by pigment molecules in the light-harvesting complex, and the path th The absorption of light energy by pigment molecules in the light-harvesting complex, and the path th
Went and Briggs demonstrated the relationship between light perception and auxin function. Went and Briggs demonstrated the relationship between light perception and auxin function.
Close-up of the underside of a gecko's foot as it walks on vertical glass Close-up of the underside of a gecko's foot as it walks on vertical glass
Absorption of ultraviolet light by aromatic amino acids Absorption of ultraviolet light by aromatic amino acids
Frank Lloyd Wright, Table lamp, executed for the Linden Glass Co. for the Susan Lawrence Dana ... Frank Lloyd Wright, Table lamp, executed for the Linden Glass Co. for the Susan Lawrence Dana ...
Light micrograph of a live diatom, with chloroplasts visible through the shell Light micrograph of a live diatom, with chloroplasts visible through the shell
Video: Interview with an Anorexic Woman (Part 1 of 2)

For a complete list of videos, visit our video library